260 (two hundred [and] sixty) is the natural number following 259 and preceding 261.
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Cardinal | two hundred sixty | |||
Ordinal | 260th (two hundred sixtieth) | |||
Factorization | 22 × 5 × 13 | |||
Greek numeral | ΣΞ´ | |||
Roman numeral | CCLX | |||
Binary | 1000001002 | |||
Ternary | 1001223 | |||
Senary | 11126 | |||
Octal | 4048 | |||
Duodecimal | 19812 | |||
Hexadecimal | 10416 |
It is also the magic constant of the n×n normal magic square and n-queens problem for n = 8, the size of an actual chess board.
260 is also the magic constant of the Franklin magic square devised by Benjamin Franklin.
52 | 61 | 4 | 13 | 20 | 29 | 36 | 45 |
14 | 3 | 62 | 51 | 46 | 35 | 30 | 19 |
53 | 60 | 5 | 12 | 21 | 28 | 37 | 44 |
11 | 6 | 59 | 54 | 43 | 38 | 27 | 22 |
55 | 58 | 7 | 10 | 23 | 26 | 39 | 42 |
9 | 8 | 57 | 56 | 41 | 40 | 25 | 24 |
50 | 63 | 2 | 15 | 18 | 31 | 34 | 47 |
16 | 1 | 64 | 49 | 48 | 33 | 32 | 17 |
The minor diagonal gives 260, and in addition a number of combinations of two half diagonals of four numbers from a corner to the center give 260.
There are 260 days in the Mayan sacred calendar Tzolkin.
261 = 32·29, lucky number, nonagonal number, unique period in base 2, number of possible unfolded tesseract patterns.
262 = 2·131, meandric number, open meandric number, untouchable number, happy number, palindrome number, semiprime.
263 is a prime, safe prime, happy number, sum of five consecutive primes (43 + 47 + 53 + 59 + 61), balanced prime, Chen prime, Eisenstein prime with no imaginary part, strictly non-palindromic number, Bernoulli irregular prime, Euler irregular prime, Gaussian prime, full reptend prime, Solinas prime, Ramanujan prime.
264 = 23·3·11 = number of edges in a 11·11 square grid. [1] The sum of all 2-digit numbers from 264, is 264: 24 + 42 + 26 + 62 + 46 + 64 = 264. 132 and 396 share this property. [2]
264 equals the sum of the squares of the digits of its own square in base 15. This property is shared with 1, 159, 284, 306 and 387.
265 = 5·53, semiprime, Padovan number, number of derangements of 6 elements, centered square number, Smith number, subfactorial 6.
266 = 2·7·19 = , sphenic number, nontotient, noncototient, repdigit in base 11 (222). 266 is also the index of the largest proper subgroups of the sporadic group known as the Janko group J1.
269 is a prime, twin prime with 271, sum of three consecutive primes (83 + 89 + 97), Chen prime, Eisenstein prime with no imaginary part, highly cototient number, strictly non-palindromic number, full reptend prime
2 (two) is a number, numeral and digit. It is the natural number following 1 and preceding 3. It is the smallest and only even prime number. Because it forms the basis of a duality, it has religious and spiritual significance in many cultures.
1000 or one thousand is the natural number following 999 and preceding 1001. In most English-speaking countries, it can be written with or without a comma or sometimes a period separating the thousands digit: 1,000.
300 is the natural number following 299 and preceding 301.
400 is the natural number following 399 and preceding 401.
500 is the natural number following 499 and preceding 501.
700 is the natural number following 699 and preceding 701.
600 is the natural number following 599 and preceding 601.
800 is the natural number following 799 and preceding 801.
900 is the natural number following 899 and preceding 901. It is the square of 30 and the sum of Euler's totient function for the first 54 positive integers. In base 10 it is a Harshad number. It is also the first number to be the square of a sphenic number.
911 is the integer following 910 and preceding 912.
311 is the natural number following 310 and preceding 312.
131 is the natural number following 130 and preceding 132.
167 is the natural number following 166 and preceding 168.
139 is the natural number following 138 and preceding 140.
181 is the natural number following 180 and preceding 182.
359 is the natural number following 358 and preceding 360. 359 is the 72nd prime number.
60,000 (sixty thousand) is the natural number that comes after 59,999 and before 60,001. It is a round number. It is the value of (F25).
262 is a natural number preceded by the number 261 and followed by 263. It has the prime factorization 2·131.
307 is the natural number following 306 and preceding 308.