Thirtyeight
The thirty-eight (38) is the natural number between thirty -seven and thirty-nine. She is straight .
Thirtyeight | |
---|---|
38 | |
presentation | |
Roman | XXXVIII |
dual | 10 0110 |
Octal | 46 |
Duodecimal | 32 |
Hexadecimal | 26th |
Morse code | · · · - - - - · · |
Mathematical properties | |
sign | positive |
parity | straight |
Factorization | 2 * 19 |
Divider | 1, 2, 19, 38 |
mathematics
38 is the sum of the first three prime squares ( ). Also, the sixteenth is the faculty prime . Also, thirty-eight is a nontotient ; H. there is no such that . Additionally, thirty-seven and thirty-eight is the first pair of consecutive natural numbers that are not divisible by any of their digits . Also, 38 is the largest even number that cannot be represented as the sum of two odd composite numbers . In addition, it can be trivially recognized that 38 is the sum of each row of a magic hexagon of the third degree.
chemistry
38 is the atomic number of strontium .
Individual evidence
- ↑ A088054 - OEIS. Accessed June 1, 2020 .
- ^ Library Genesis: Number story: from counting to cryptography . [New York]: Copernicus, 2008 ( archive.org [accessed June 1, 2020]).