Base | Representation |
---|---|
bin | 10101100010101110… |
… | …100111000001110010 |
3 | 2012201001110211111202 |
4 | 111202232213001302 |
5 | 334333043102010 |
6 | 14343142211202 |
7 | 1446133100252 |
oct | 254256470162 |
9 | 65631424452 |
10 | 23131222130 |
11 | 989aa76605 |
12 | 4596723b02 |
13 | 2248314cb3 |
14 | 11960c9962 |
15 | 905ad06a5 |
hex | 562ba7072 |
23131222130 has 32 divisors (see below), whose sum is σ = 43759094400. Its totient is φ = 8786524032.
The previous prime is 23131222111. The next prime is 23131222171. The reversal of 23131222130 is 3122213132.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 329795 + ... + 393734.
It is an arithmetic number, because the mean of its divisors is an integer number (1367471700).
Almost surely, 223131222130 is an apocalyptic number.
23131222130 is a deficient number, since it is larger than the sum of its proper divisors (20627872270).
23131222130 is a wasteful number, since it uses less digits than its factorization.
23131222130 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 723698.
The product of its (nonzero) digits is 432, while the sum is 20.
Adding to 23131222130 its reverse (3122213132), we get a palindrome (26253435262).
The spelling of 23131222130 in words is "twenty-three billion, one hundred thirty-one million, two hundred twenty-two thousand, one hundred thirty".
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