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164885028 = 223711178447
BaseRepresentation
bin10011101001111…
…11001000100100
3102111021000201220
421310333020210
5314202310103
624210020340
74041333240
oct1164771044
9374230656
10164885028
1185089620
12472776b0
1328211109
1417c81420
15e71ec53
hex9d3f224

164885028 has 48 divisors (see below), whose sum is σ = 479668224. Its totient is φ = 42827040.

The previous prime is 164885003. The next prime is 164885033. The reversal of 164885028 is 820588461.

164885028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 88300 + ... + 90147.

It is an arithmetic number, because the mean of its divisors is an integer number (9993088).

Almost surely, 2164885028 is an apocalyptic number.

It is an amenable number.

164885028 is an abundant number, since it is smaller than the sum of its proper divisors (314783196).

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

164885028 is a wasteful number, since it uses less digits than its factorization.

164885028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178472 (or 178470 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 42.

The square root of 164885028 is about 12840.7565197694. The cubic root of 164885028 is about 548.3532318690.

The spelling of 164885028 in words is "one hundred sixty-four million, eight hundred eighty-five thousand, twenty-eight".

Divisors: 1 2 3 4 6 7 11 12 14 21 22 28 33 42 44 66 77 84 132 154 231 308 462 924 178447 356894 535341 713788 1070682 1249129 1962917 2141364 2498258 3747387 3925834 4996516 5888751 7494774 7851668 11777502 13740419 14989548 23555004 27480838 41221257 54961676 82442514 164885028