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23315314816 = 27473875551
BaseRepresentation
bin10101101101101100…
…110111100010000000
32020011212212201012101
4111231230313202000
5340222210033231
614413320040144
71453526622523
oct255554674200
966155781171
1023315314816
119984984122
124628303054
1322774bc991
1411b272abba
15916d46661
hex56db37880

23315314816 has 32 divisors (see below), whose sum is σ = 47436756480. Its totient is φ = 11409619200.

The previous prime is 23315314807. The next prime is 23315314829. The reversal of 23315314816 is 61841351332.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×233153148162 (a number of 22 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 1931760 + ... + 1943791.

It is an arithmetic number, because the mean of its divisors is an integer number (1482398640).

Almost surely, 223315314816 is an apocalyptic number.

It is an amenable number.

23315314816 is an abundant number, since it is smaller than the sum of its proper divisors (24121441664).

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

23315314816 is an equidigital number, since it uses as much as digits as its factorization.

23315314816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3875612 (or 3875600 counting only the distinct ones).

The product of its digits is 51840, while the sum is 37.

The spelling of 23315314816 in words is "twenty-three billion, three hundred fifteen million, three hundred fourteen thousand, eight hundred sixteen".

Divisors: 1 2 4 8 16 32 47 64 94 128 188 376 752 1504 3008 6016 3875551 7751102 15502204 31004408 62008816 124017632 182150897 248035264 364301794 496070528 728603588 1457207176 2914414352 5828828704 11657657408 23315314816