250 (number)
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|---|---|---|---|---|
| Cardinal | two hundred fifty | |||
| Ordinal | 250th (two hundred fiftieth) | |||
| Factorization | 2 × 53 | |||
| Greek numeral | ΣΝ´ | |||
| Roman numeral | CCL, ccl | |||
| Binary | 111110102 | |||
| Ternary | 1000213 | |||
| Senary | 10546 | |||
| Octal | 3728 | |||
| Duodecimal | 18A12 | |||
| Hexadecimal | FA16 | |||
250 (two hundred [and] fifty) is the natural number following 249 and preceding 251.
250 is the sum of two square numbers in two different ways ( and ), and it is also the sum of two perfect cubes ().[1][2][3]
250 is also the sum of squares of the divisors of the number 14.[4]
250 squared plus 1 is prime.[5]
Society
[edit]- In Chinese slang, the number 250 means 'idiot' (spelled as èr bái wǔ/ㄦˋ ㄅㄞˇ ㄨˇ).[6] The Gulfstream G280 was originally the G250, and was renamed for this reason.[7]
References
[edit]- ^ Sloane, N. J. A. (ed.). "Sequence A007692 (Numbers that are the sum of 2 nonzero squares in 2 or more ways)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
- ^ Sloane, N. J. A. (ed.). "Sequence A003325 (Numbers that are the sum of 2 positive cubes)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
- ^ Wells, David (1997). The Penguin Dictionary of Curious and Interesting Numbers (revised ed.). Penguin. p. 134. ISBN 0-14-026149-4.
- ^ Sloane, N. J. A. (ed.). "Sequence A001157 (sum of squares of divisors of n)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
- ^ Sloane, N. J. A. (ed.). "Sequence A005574 (Numbers k such that k^2 + 1 is prime)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
- ^ CHRISTOPHER BEAM (2 May 2014). "The Secret Messages Inside Chinese URLs". The New Republic. Retrieved 12 October 2019.
Chinese has plenty of other number-based slang, such as erbaiwu, or "250," which means "idiot," or "38," pronounced sanba, which means "bitch." There are even some streets in China that skip house number 250.
- ^ "Gulfstream renames G250" (Press release). Gulfstream. July 18, 2011. Archived from the original on December 15, 2018. Retrieved October 27, 2016.
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