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161392108 = 22127317701
BaseRepresentation
bin10011001111010…
…10010111101100
3102020200120100111
421213222113230
5312304021413
624003105404
73666544633
oct1147522754
9366616314
10161392108
1183113309
1246072264
132758a2b7
141761251a
15e27ed3d
hex99ea5ec

161392108 has 12 divisors (see below), whose sum is σ = 284660992. Its totient is φ = 80060400.

The previous prime is 161392097. The next prime is 161392139. The reversal of 161392108 is 801293161.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 161392108.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158343 + ... + 159358.

Almost surely, 2161392108 is an apocalyptic number.

It is an amenable number.

161392108 is a deficient number, since it is larger than the sum of its proper divisors (123268884).

161392108 is a wasteful number, since it uses less digits than its factorization.

161392108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317832 (or 317830 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 161392108 is about 12704.0193639651. The cubic root of 161392108 is about 544.4534632717.

The spelling of 161392108 in words is "one hundred sixty-one million, three hundred ninety-two thousand, one hundred eight".

Divisors: 1 2 4 127 254 508 317701 635402 1270804 40348027 80696054 161392108