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23015251032 = 2331756409929
BaseRepresentation
bin10101011011110100…
…001101110001011000
32012101222020220001220
4111123310031301120
5334113401013112
614323440412040
71443224256144
oct253364156130
965358226056
1023015251032
119840566824
124563917020
13222a29bb47
14118493c224
158ea82398c
hex55bd0dc58

23015251032 has 32 divisors (see below), whose sum is σ = 60922724400. Its totient is φ = 7220470784.

The previous prime is 23015250997. The next prime is 23015251033.

It is a happy number.

23015251032 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 23015250993 and 23015251011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23015251033) 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, 28204557 + ... + 28205372.

Almost surely, 223015251032 is an apocalyptic number.

It is an amenable number.

23015251032 is an abundant number, since it is smaller than the sum of its proper divisors (37907473368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23015251032 is a wasteful number, since it uses less digits than its factorization.

23015251032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56409955 (or 56409951 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The spelling of 23015251032 in words is "twenty-three billion, fifteen million, two hundred fifty-one thousand, thirty-two".

Divisors: 1 2 3 4 6 8 12 17 24 34 51 68 102 136 204 408 56409929 112819858 169229787 225639716 338459574 451279432 676919148 958968793 1353838296 1917937586 2876906379 3835875172 5753812758 7671750344 11507625516 23015251032