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164764928 = 28798147
BaseRepresentation
bin10011101001000…
…01110100000000
3102111000220222202
421310201310000
5314134434203
624203252332
74040323136
oct1164416400
9374026882
10164764928
1185007369
124721a0a8
132819b553
1417c4d756
15e6e9388
hex9d21d00

164764928 has 36 divisors (see below), whose sum is σ = 333090240. Its totient is φ = 81329664.

The previous prime is 164764889. The next prime is 164764933. The reversal of 164764928 is 829467461.

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, 16151 + ... + 24297.

Almost surely, 2164764928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 164764928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166545120).

164764928 is an abundant number, since it is smaller than the sum of its proper divisors (168325312).

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

164764928 is an frugal number, since it uses more digits than its factorization.

164764928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8242 (or 8228 counting only the distinct ones).

The product of its digits is 580608, while the sum is 47.

The square root of 164764928 is about 12836.0791521399. The cubic root of 164764928 is about 548.2200618651.

The spelling of 164764928 in words is "one hundred sixty-four million, seven hundred sixty-four thousand, nine hundred twenty-eight".

Divisors: 1 2 4 8 16 32 64 79 128 158 256 316 632 1264 2528 5056 8147 10112 16294 20224 32588 65176 130352 260704 521408 643613 1042816 1287226 2085632 2574452 5148904 10297808 20595616 41191232 82382464 164764928