Base | Representation |
---|---|
bin | 110100100001101010110010… |
… | …001010100101011111110011 |
3 | 1010021221112121110020010012100 |
4 | 310201222302022211133303 |
5 | 220234400240111232011 |
6 | 2135153254350231443 |
7 | 66442034123645535 |
oct | 6441526212453763 |
9 | 1107845543203170 |
10 | 231012100102131 |
11 | 676757550420a7 |
12 | 21aab838ab5583 |
13 | 9bb94697a95ba |
14 | 410908c451855 |
15 | 1ba924ca24d56 |
hex | d21ab22a57f3 |
231012100102131 has 24 divisors (see below), whose sum is σ = 344985510130560. Its totient is φ = 148807552665600.
The previous prime is 231012100102111. The next prime is 231012100102139. The reversal of 231012100102131 is 131201001210132.
231012100102131 is a `hidden beast` number, since 2 + 310 + 1 + 210 + 0 + 10 + 2 + 131 = 666.
It is not a de Polignac number, because 231012100102131 - 26 = 231012100102067 is a prime.
It is a super-2 number, since 2×2310121001021312 (a number of 30 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (231012100102139) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 645687276 + ... + 646044953.
It is an arithmetic number, because the mean of its divisors is an integer number (14374396255440).
Almost surely, 2231012100102131 is an apocalyptic number.
231012100102131 is a deficient number, since it is larger than the sum of its proper divisors (113973410028429).
231012100102131 is a wasteful number, since it uses less digits than its factorization.
231012100102131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1291732907 (or 1291732904 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 18.
Adding to 231012100102131 its reverse (131201001210132), we get a palindrome (362213101312263).
The spelling of 231012100102131 in words is "two hundred thirty-one trillion, twelve billion, one hundred million, one hundred two thousand, one hundred thirty-one".
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