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164785044 = 22313732087
BaseRepresentation
bin10011101001001…
…10101110010100
3102111001221120210
421310212232110
5314141110134
624203525420
74040435604
oct1164465624
9374057523
10164785044
1185020496
1247229870
13281a7758
1417c56c04
15e7002e9
hex9d26b94

164785044 has 12 divisors (see below), whose sum is σ = 384498464. Its totient is φ = 54928344.

The previous prime is 164785039. The next prime is 164785051. The reversal of 164785044 is 440587461.

164785044 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×1647850442 = 54308221452163872, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 164784993 and 164785011.

It is a congruent number.

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, 6866032 + ... + 6866055.

Almost surely, 2164785044 is an apocalyptic number.

It is an amenable number.

164785044 is an abundant number, since it is smaller than the sum of its proper divisors (219713420).

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

164785044 is a wasteful number, since it uses less digits than its factorization.

164785044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13732094 (or 13732092 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 39.

The square root of 164785044 is about 12836.8627008315. The cubic root of 164785044 is about 548.2423715199.

The spelling of 164785044 in words is "one hundred sixty-four million, seven hundred eighty-five thousand, forty-four".

Divisors: 1 2 3 4 6 12 13732087 27464174 41196261 54928348 82392522 164785044