51 (number)

Last updated
50 51 52
Cardinal fifty-one
Ordinal 51st
(fifty-first)
Factorization 3 × 17
Divisors 1, 3, 17, 51
Greek numeral ΝΑ´
Roman numeral LI
Binary 1100112
Ternary 12203
Senary 1236
Octal 638
Duodecimal 4312
Hexadecimal 3316

51 (fifty-one) is the natural number following 50 and preceding 52.

Contents

In mathematics

Fifty-one is

In other fields

51 is:

See also

Related Research Articles

29 (twenty-nine) is the natural number following 28 and preceding 30. It is a prime number.

76 (seventy-six) is the natural number following 75 and preceding 77.

31 (thirty-one) is the natural number following 30 and preceding 32. It is a prime number.

54 (fifty-four) is the natural number following 53 and preceding 55.

58 (fifty-eight) is the natural number following 57 and preceding 59.

93 (ninety-three) is the natural number following 92 and preceding 94.

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.

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.

2000 is a natural number following 1999 and preceding 2001.

10,000 is the natural number following 9,999 and preceding 10,001.

5000 is the natural number following 4999 and preceding 5001. Five thousand is, at the same time, the largest isogrammic numeral, and the smallest number that contains every one of the five vowels in the English language.

<span class="mw-page-title-main">1,000,000</span> Natural number

1,000,000, or one thousand thousand, is the natural number following 999,999 and preceding 1,000,001. The word is derived from the early Italian millione, from mille, "thousand", plus the augmentative suffix -one.

40,000 is the natural number that comes after 39,999 and before 40,001. It is the square of 200.

50,000 is the natural number that comes after 49,999 and before 50000

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References

  1. "Sloane's A000326 : Pentagonal numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-30.
  2. "Sloane's A005891 : Centered pentagonal numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-30.
  3. "Sloane's A051870 : 18-gonal numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-30.
  4. "Sloane's A001006 : Motzkin numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-30.
  5. "Sloane's A001608 : Perrin sequence". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-30.
  6. "Sloane's A005528 : Størmer numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-30.
  7. Sloane, N. J. A. (ed.). "SequenceA000048". The On-Line Encyclopedia of Integer Sequences . OEIS Foundation.
  8. Diaconis, Persi; Graham, Ron (2012), "Chapter 5: From the Gilbreath Principle to the Mandelbrot Set", Magical Mathematics: the mathematical ideas that animate great magic tricks, Princeton University Press, pp. 61–83.