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90338873916 = 2237528239493
BaseRepresentation
bin101010000100010011…
…1011101001000111100
322122011212112021202010
41110020213131020330
52440003222431131
6105300123331220
76345452521104
oct1241047351074
9278155467663
1090338873916
1135348a37085
1215612380b10
1386990b11a5
14452dd10204
15253aeb8b46
hex15089dd23c

90338873916 has 12 divisors (see below), whose sum is σ = 210790705832. Its totient is φ = 30112957968.

The previous prime is 90338873879. The next prime is 90338873923. The reversal of 90338873916 is 61937883309.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×903388739162 (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 3764119735 + ... + 3764119758.

Almost surely, 290338873916 is an apocalyptic number.

It is an amenable number.

90338873916 is an abundant number, since it is smaller than the sum of its proper divisors (120451831916).

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

90338873916 is a wasteful number, since it uses less digits than its factorization.

90338873916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7528239500 (or 7528239498 counting only the distinct ones).

The product of its (nonzero) digits is 5878656, while the sum is 57.

The spelling of 90338873916 in words is "ninety billion, three hundred thirty-eight million, eight hundred seventy-three thousand, nine hundred sixteen".

Divisors: 1 2 3 4 6 12 7528239493 15056478986 22584718479 30112957972 45169436958 90338873916