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23131222130 = 2523139723529
BaseRepresentation
bin10101100010101110…
…100111000001110010
32012201001110211111202
4111202232213001302
5334333043102010
614343142211202
71446133100252
oct254256470162
965631424452
1023131222130
11989aa76605
124596723b02
132248314cb3
1411960c9962
15905ad06a5
hex562ba7072

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".

Divisors: 1 2 5 10 23 46 115 139 230 278 695 1390 3197 6394 15985 31970 723529 1447058 3617645 7235290 16641167 33282334 83205835 100570531 166411670 201141062 502852655 1005705310 2313122213 4626244426 11565611065 23131222130