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64158852 = 2235346571
BaseRepresentation
bin1111010010111…
…1110010000100
311110201121101210
43310233302010
5112411040402
610211051420
71406225022
oct364576204
9143647353
1064158852
113324154a
12195a0b70
13103a4c24
148741712
15597506c
hex3d2fc84

64158852 has 12 divisors (see below), whose sum is σ = 149704016. Its totient is φ = 21386280.

The previous prime is 64158847. The next prime is 64158859. The reversal of 64158852 is 25885146.

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

It is a self number, because there is not a number n which added to its sum of digits gives 64158852.

It is not an unprimeable number, because it can be changed into a prime (64158859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2673274 + ... + 2673297.

Almost surely, 264158852 is an apocalyptic number.

It is an amenable number.

64158852 is an abundant number, since it is smaller than the sum of its proper divisors (85545164).

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

64158852 is a wasteful number, since it uses less digits than its factorization.

64158852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5346578 (or 5346576 counting only the distinct ones).

The product of its digits is 76800, while the sum is 39.

The square root of 64158852 is about 8009.9220969994. The cubic root of 64158852 is about 400.3306682376.

The spelling of 64158852 in words is "sixty-four million, one hundred fifty-eight thousand, eight hundred fifty-two".

Divisors: 1 2 3 4 6 12 5346571 10693142 16039713 21386284 32079426 64158852