Base | Representation |
---|---|
bin | 10101100010101010… |
… | …110101010100010111 |
3 | 2012200222121112102111 |
4 | 111202222311110113 |
5 | 334332314411322 |
6 | 14343105051451 |
7 | 1446121504654 |
oct | 254252652427 |
9 | 65628545374 |
10 | 23130232087 |
11 | 989a45a796 |
12 | 4596326b87 |
13 | 2248059481 |
14 | 1195d0cc2b |
15 | 905987177 |
hex | 562ab5517 |
23130232087 has 2 divisors, whose sum is σ = 23130232088. Its totient is φ = 23130232086.
The previous prime is 23130232063. The next prime is 23130232091. The reversal of 23130232087 is 78023203132.
It is a strong prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-23130232087 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (23130232007) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11565116043 + 11565116044.
It is an arithmetic number, because the mean of its divisors is an integer number (11565116044).
Almost surely, 223130232087 is an apocalyptic number.
23130232087 is a deficient number, since it is larger than the sum of its proper divisors (1).
23130232087 is an equidigital number, since it uses as much as digits as its factorization.
23130232087 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 12096, while the sum is 31.
The spelling of 23130232087 in words is "twenty-three billion, one hundred thirty million, two hundred thirty-two thousand, eighty-seven".
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