342 ( three hundred and forty two ) is a natural number between 341 and 343 .
- 342 days a year - December 8 (in a leap year - December 7 ).
| 342 | |
|---|---|
| three hundred and forty-two | |
| ← 340 · 341 · 342 · 343 · 344 → | |
| Factorization | 2 · 3 2 · 19 |
| Roman notation | CCCXLII |
| Binary | 101010110 |
| Octal | 526 |
| Hexadecimal | 156 |
In Math
- 342 is an even three-digit number.
- The sum of the digits of 342 is 9 .
- The product of the digits of this number is 24 .
- The square of this number is 116 964.
- 342 is the number of Harshad [1] (completely divided by the sum of its numbers).
- The number 342 is untouchable [2] .
- 342 is a 7-sided and 115-sided number [3] .
- 342 is the prone number [4] .
- The number 342 is the sum of the cubes of three positive numbers [5] : 342 = 1 3 + 5 3 + 6 3 .
- 342 in the septimal system is 666 in decimal [3] .
In other areas
- 342 year
- 342 year BC e.
- NGC 342 - Galaxy in the constellation Keith
Notes
- ↑ sequence A005349 in OEIS .
- ↑ sequence A005114 in OEIS .
- ↑ 1 2 The Number 342 .
- ↑ sequence A002378 in OEIS .
- ↑ sequence A003072 in OEIS .