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90931301132 = 22729111984361
BaseRepresentation
bin101010010101111101…
…1011000101100001100
322200201011021201002212
41110223323120230030
52442211403114012
6105435005205552
76366235210130
oct1245373305414
9280634251085
1090931301132
1135622392451
12157588608b8
138761a57c39
1445888853c0
152572edcb22
hex152bed8b0c

90931301132 has 24 divisors (see below), whose sum is σ = 188133728160. Its totient is φ = 37626744960.

The previous prime is 90931301093. The next prime is 90931301147. The reversal of 90931301132 is 23110313909.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55991369 + ... + 55992992.

It is an arithmetic number, because the mean of its divisors is an integer number (7838905340).

Almost surely, 290931301132 is an apocalyptic number.

It is an amenable number.

90931301132 is an abundant number, since it is smaller than the sum of its proper divisors (97202427028).

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

90931301132 is a wasteful number, since it uses less digits than its factorization.

90931301132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111984401 (or 111984399 counting only the distinct ones).

The product of its (nonzero) digits is 4374, while the sum is 32.

The spelling of 90931301132 in words is "ninety billion, nine hundred thirty-one million, three hundred one thousand, one hundred thirty-two".

Divisors: 1 2 4 7 14 28 29 58 116 203 406 812 111984361 223968722 447937444 783890527 1567781054 3135562108 3247546469 6495092938 12990185876 22732825283 45465650566 90931301132