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23108436671 = 1931731493607
BaseRepresentation
bin10101100001010111…
…101100001010111111
32012122110121012201212
4111201113230022333
5334311224433141
614341005555035
71445435320325
oct254127541277
965573535655
1023108436671
119889123551
12458ab75a7b
132243697a88
141193077d15
15903ace2eb
hex5615ec2bf

23108436671 has 32 divisors (see below), whose sum is σ = 25631232000. Its totient is φ = 20749789440.

The previous prime is 23108436649. The next prime is 23108436707. The reversal of 23108436671 is 17663480132.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-23108436671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23108436601) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6404750 + ... + 6408356.

It is an arithmetic number, because the mean of its divisors is an integer number (800976000).

Almost surely, 223108436671 is an apocalyptic number.

23108436671 is a deficient number, since it is larger than the sum of its proper divisors (2522795329).

23108436671 is a wasteful number, since it uses less digits than its factorization.

23108436671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3879.

The product of its (nonzero) digits is 145152, while the sum is 41.

The spelling of 23108436671 in words is "twenty-three billion, one hundred eight million, four hundred thirty-six thousand, six hundred seventy-one".

Divisors: 1 19 31 73 149 589 1387 2263 2831 3607 4619 10877 42997 68533 87761 111817 206663 263311 337187 537443 2124523 5002909 6406553 8162641 10211417 16660733 39233339 155090179 316553927 745433441 1216233509 23108436671