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90910118275 = 5230011211731
BaseRepresentation
bin101010010101010101…
…0100101000110000011
322200122200102111200121
41110222222211012003
52442140442241100
6105432531201111
76365560153414
oct1245252450603
9280580374617
1090910118275
1135611434459
1215751746197
13875a54c2c2
144585b2d80b
15257120651a
hex152aaa5183

90910118275 has 12 divisors (see below), whose sum is σ = 112766203384. Its totient is φ = 72703800000.

The previous prime is 90910118269. The next prime is 90910118309. The reversal of 90910118275 is 57281101909.

It is a de Polignac number, because none of the positive numbers 2k-90910118275 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 530841 + ... + 680890.

Almost surely, 290910118275 is an apocalyptic number.

90910118275 is a deficient number, since it is larger than the sum of its proper divisors (21856085109).

90910118275 is a wasteful number, since it uses less digits than its factorization.

90910118275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214742 (or 1214737 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 43.

The spelling of 90910118275 in words is "ninety billion, nine hundred ten million, one hundred eighteen thousand, two hundred seventy-five".

Divisors: 1 5 25 3001 15005 75025 1211731 6058655 30293275 3636404731 18182023655 90910118275