Base | Representation |
---|---|
bin | 10101100010101101… |
… | …111000010111100010 |
3 | 2012201001010010100020 |
4 | 111202231320113202 |
5 | 334333020443020 |
6 | 14343134134310 |
7 | 1446131343123 |
oct | 254255702742 |
9 | 65631103306 |
10 | 23131031010 |
11 | 989a955a5a |
12 | 4596651396 |
13 | 2248278cc9 |
14 | 119607a04a |
15 | 905a93c40 |
hex | 562b785e2 |
23131031010 has 16 divisors (see below), whose sum is σ = 55514474496. Its totient is φ = 6168274928.
The previous prime is 23131030987. The next prime is 23131031017. The reversal of 23131031010 is 1013013132.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is not an unprimeable number, because it can be changed into a prime (23131031017) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 385517154 + ... + 385517213.
It is an arithmetic number, because the mean of its divisors is an integer number (3469654656).
Almost surely, 223131031010 is an apocalyptic number.
23131031010 is an abundant number, since it is smaller than the sum of its proper divisors (32383443486).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23131031010 is a wasteful number, since it uses less digits than its factorization.
23131031010 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 771034377.
The product of its (nonzero) digits is 54, while the sum is 15.
Adding to 23131031010 its reverse (1013013132), we get a palindrome (24144044142).
The spelling of 23131031010 in words is "twenty-three billion, one hundred thirty-one million, thirty-one thousand, ten".
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