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23875775957 = 112170525087
BaseRepresentation
bin10110001111000110…
…110110110111010101
32021121221111002100102
4112033012312313111
5342344144312312
614545100423445
71503443514155
oct261706666725
967557432312
1023875775957
11a142286950
124763b47b85
1323366538a7
141226d40765
1594b153ec2
hex58f1b6dd5

23875775957 has 4 divisors (see below), whose sum is σ = 26046301056. Its totient is φ = 21705250860.

The previous prime is 23875775873. The next prime is 23875775977. The reversal of 23875775957 is 75957757832.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23875775957 - 212 = 23875771861 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23875775893 and 23875775902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23875775977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1085262533 + ... + 1085262554.

It is an arithmetic number, because the mean of its divisors is an integer number (6511575264).

Almost surely, 223875775957 is an apocalyptic number.

It is an amenable number.

23875775957 is a deficient number, since it is larger than the sum of its proper divisors (2170525099).

23875775957 is a wasteful number, since it uses less digits than its factorization.

23875775957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2170525098.

The product of its digits is 129654000, while the sum is 65.

The spelling of 23875775957 in words is "twenty-three billion, eight hundred seventy-five million, seven hundred seventy-five thousand, nine hundred fifty-seven".

Divisors: 1 11 2170525087 23875775957