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23051005542 = 2331922466867
BaseRepresentation
bin10101011101111100…
…100110111001100110
32012111110112102001000
4111131330212321212
5334202024134132
614331155014130
71444140212535
oct253574467146
965443472030
1023051005542
119859767704
12457389a346
13223480a166
1411895a831c
158eda3787c
hex55df26e66

23051005542 has 32 divisors (see below), whose sum is σ = 53920483200. Its totient is φ = 7279264584.

The previous prime is 23051005489. The next prime is 23051005543. The reversal of 23051005542 is 24550015032.

It is a happy number.

23051005542 is a `hidden beast` number, since 2 + 3 + 0 + 5 + 100 + 554 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23051005543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11232408 + ... + 11234459.

It is an arithmetic number, because the mean of its divisors is an integer number (1685015100).

Almost surely, 223051005542 is an apocalyptic number.

23051005542 is an abundant number, since it is smaller than the sum of its proper divisors (30869477658).

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

23051005542 is a wasteful number, since it uses less digits than its factorization.

23051005542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22466897 (or 22466891 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The spelling of 23051005542 in words is "twenty-three billion, fifty-one million, five thousand, five hundred forty-two".

Divisors: 1 2 3 6 9 18 19 27 38 54 57 114 171 342 513 1026 22466867 44933734 67400601 134801202 202201803 404403606 426870473 606605409 853740946 1213210818 1280611419 2561222838 3841834257 7683668514 11525502771 23051005542