195 (number)
| ||||
|---|---|---|---|---|
| Cardinal | one hundred ninety-five | |||
| Ordinal | 195th (one hundred ninety-fifth) | |||
| Factorization | 3 × 5 × 13 | |||
| Greek numeral | ΡϞΕ´ | |||
| Roman numeral | CXCV | |||
| Binary | 110000112 | |||
| Ternary | 210203 | |||
| Senary | 5236 | |||
| Octal | 3038 | |||
| Duodecimal | 14312 | |||
| Hexadecimal | C316 | |||
195 (one hundred [and] ninety-five) is the natural number following 194 and preceding 196.
In mathematics
[edit]195 is:
- the sum of eleven consecutive primes: 3 + 5 + 7 + 11 + 13 + 17 + 19 + 23 + 29 + 31 + 37
- the smallest number expressed as a sum of distinct squares in 16 different ways (sequence A097563 in the OEIS)
- a centered tetrahedral number
- in the middle of a prime quadruplet (191, 193, 197, 199).
See also
[edit]References
[edit]
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