Base | Representation |
---|---|
bin | 10101011100110001… |
… | …000110100001100010 |
3 | 2012110002021210120200 |
4 | 111130301012201202 |
5 | 334131442242010 |
6 | 14325210450030 |
7 | 1443510034023 |
oct | 253461064142 |
9 | 65402253520 |
10 | 23031212130 |
11 | 9849578613 |
12 | 4569133916 |
13 | 2230699a94 |
14 | 1186ad4c4a |
15 | 8ebe27cc0 |
hex | 55cc46862 |
23031212130 has 48 divisors (see below), whose sum is σ = 61155229824. Its totient is φ = 6010981920.
The previous prime is 23031212101. The next prime is 23031212167. The reversal of 23031212130 is 3121213032.
23031212130 is a `hidden beast` number, since 230 + 312 + 121 + 3 + 0 = 666.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2718136 + ... + 2726595.
It is an arithmetic number, because the mean of its divisors is an integer number (1274067288).
Almost surely, 223031212130 is an apocalyptic number.
23031212130 is an abundant number, since it is smaller than the sum of its proper divisors (38124017694).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23031212130 is a wasteful number, since it uses less digits than its factorization.
23031212130 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5444791 (or 5444788 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
Adding to 23031212130 its reverse (3121213032), we get a palindrome (26152425162).
The spelling of 23031212130 in words is "twenty-three billion, thirty-one million, two hundred twelve thousand, one hundred thirty".
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