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164383772 = 22710953861
BaseRepresentation
bin10011100110001…
…00110000011100
3102110022120010212
421303010300130
5314040240042
624151151552
74034144660
oct1163046034
9373276125
10164383772
1184876a63
12470755b8
1328096c07
1417b908a0
15e671482
hex9cc4c1c

164383772 has 24 divisors (see below), whose sum is σ = 331789920. Its totient is φ = 69802560.

The previous prime is 164383771. The next prime is 164383787. The reversal of 164383772 is 277383461.

164383772 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164383771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23879 + ... + 29982.

It is an arithmetic number, because the mean of its divisors is an integer number (13824580).

Almost surely, 2164383772 is an apocalyptic number.

It is an amenable number.

164383772 is an abundant number, since it is smaller than the sum of its proper divisors (167406148).

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

164383772 is a wasteful number, since it uses less digits than its factorization.

164383772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53981 (or 53979 counting only the distinct ones).

The product of its digits is 169344, while the sum is 41.

The square root of 164383772 is about 12821.2234985589. The cubic root of 164383772 is about 547.7969971083.

The spelling of 164383772 in words is "one hundred sixty-four million, three hundred eighty-three thousand, seven hundred seventy-two".

Divisors: 1 2 4 7 14 28 109 218 436 763 1526 3052 53861 107722 215444 377027 754054 1508108 5870849 11741698 23483396 41095943 82191886 164383772