Base | Representation |
---|---|
bin | 10111110101000011… |
… | …00000110011110011 |
3 | 1020000120022221101202 |
4 | 23322201200303303 |
5 | 202200003224411 |
6 | 5513234521415 |
7 | 632010623165 |
oct | 137241406363 |
9 | 36016287352 |
10 | 12793023731 |
11 | 5475368094 |
12 | 259043626b |
13 | 128b544237 |
14 | 89508c935 |
15 | 4ed1ba83b |
hex | 2fa860cf3 |
12793023731 has 2 divisors, whose sum is σ = 12793023732. Its totient is φ = 12793023730.
The previous prime is 12793023653. The next prime is 12793023739. The reversal of 12793023731 is 13732039721.
It is a strong prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-12793023731 is a prime.
It is a super-2 number, since 2×127930237312 (a number of 21 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (12793023739) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6396511865 + 6396511866.
It is an arithmetic number, because the mean of its divisors is an integer number (6396511866).
Almost surely, 212793023731 is an apocalyptic number.
12793023731 is a deficient number, since it is larger than the sum of its proper divisors (1).
12793023731 is an equidigital number, since it uses as much as digits as its factorization.
12793023731 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 47628, while the sum is 38.
The spelling of 12793023731 in words is "twelve billion, seven hundred ninety-three million, twenty-three thousand, seven hundred thirty-one".
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