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164012915 = 5114172733
BaseRepresentation
bin10011100011010…
…10001101110011
3102102121201102102
421301222031303
5313441403130
624135211015
74031041523
oct1161521563
9372551372
10164012915
1184643370
1246b16a6b
1327c97181
1417ad5683
15e5eb645
hex9c6a373

164012915 has 16 divisors (see below), whose sum is σ = 219947616. Its totient is φ = 116371200.

The previous prime is 164012887. The next prime is 164012929. The reversal of 164012915 is 519210461.

It is not a de Polignac number, because 164012915 - 28 = 164012659 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34112 + ... + 38621.

It is an arithmetic number, because the mean of its divisors is an integer number (13746726).

Almost surely, 2164012915 is an apocalyptic number.

164012915 is a deficient number, since it is larger than the sum of its proper divisors (55934701).

164012915 is a wasteful number, since it uses less digits than its factorization.

164012915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72790.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 164012915 is about 12806.7527109724. The cubic root of 164012915 is about 547.3847355748.

The spelling of 164012915 in words is "one hundred sixty-four million, twelve thousand, nine hundred fifteen".

Divisors: 1 5 11 41 55 205 451 2255 72733 363665 800063 2982053 4000315 14910265 32802583 164012915