269 (number)

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Cardinal two hundred sixty-nine
Ordinal 269th
(two hundred sixty-ninth)
Factorization prime
Prime yes
Greek numeral ΣΞΘ´
Roman numeral CCLXIX
Binary 1000011012
Ternary 1002223
Senary 11256
Octal 4158
Duodecimal 1A512
Hexadecimal 10D16

269 (two hundred [and] sixty-nine) is the natural number between 268 and 270. It is also a prime number.

Contents

In mathematics

269 is a twin prime, [1] and a Ramanujan prime. [2] It is the largest prime factor of 9! + 1 = 362881, [3] and the smallest natural number that cannot be represented as the determinant of a 10 × 10 (0,1)-matrix. [4]

In other fields

Related Research Articles

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.

23 (twenty-three) is the natural number following 22 and preceding 24.

32 (thirty-two) is the natural number following 31 and preceding 33.

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.

144 is the natural number following 143 and preceding 145. It is a dozen dozens, or one gross.

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.

4000 is the natural number following 3999 and preceding 4001. It is a decagonal number.

229 is the natural number following 228 and preceding 230.

100,000 (one hundred thousand) is the natural number following 99,999 and preceding 100,001. In scientific notation, it is written as 105.

227 is the natural number between 226 and 228. It is also a prime number.

233 is the natural number following 232 and preceding 234.

263 is the natural number between 262 and 264. It is also a prime number.

271 is the natural number after 270 and before 272.

41 (forty-one) is the natural number following 40 and preceding 42.

References

  1. ↑ Sloane, N. J. A. (ed.). "SequenceA001359(Lesser of twin primes)". The On-Line Encyclopedia of Integer Sequences . OEIS Foundation.
  2. ↑ Sloane, N. J. A. (ed.). "SequenceA104272(Ramanujan primes)". The On-Line Encyclopedia of Integer Sequences . OEIS Foundation.
  3. ↑ Sloane, N. J. A. (ed.). "SequenceA002583(Largest prime factor of n! + 1)". The On-Line Encyclopedia of Integer Sequences . OEIS Foundation.
  4. ↑ Sloane, N. J. A. (ed.). "SequenceA013588(Smallest positive integer not the determinant of an n X n 0-1 matrix)". The On-Line Encyclopedia of Integer Sequences . OEIS Foundation.
  5. ↑ "I-269 corridor finally opens, connecting I-55, I-40". Action News 5. 26 October 2018. Retrieved 27 February 2024.
  6. ↑ Ahituv, Netta (21 March 2013). "The Israeli Calf That Started a Mass Tattoo Movement". Haaretz.
  7. ↑ Laylin, Tafline (4 April 2013). "269life Activists Etch and Burn White Calf Branding Number Into Skin". Green Prophet. Archived from the original on 8 April 2013.
  8. ↑ "Missouri State Route 269: Clay County". http://www.billburmaster.com .{{cite web}}: External link in |website= (help)
  9. ↑ "Comoros (country code +269)" (PDF). www.itu.int. Retrieved 27 February 2024.
  10. ↑ North American Numbering Plan Administrator (NANPA) (7 August 2001). "616 NPA Split; Creating 269 NPA (Michigan)" (PDF). www.nationalnanpa.com. Retrieved 27 February 2024.

See also

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