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64163056 = 2431129361
BaseRepresentation
bin1111010011000…
…0110011110000
311110201211011111
43310300303300
5112411204211
610211123104
71406243206
oct364606360
9143654144
1064163056
1133244721
12195a3494
13103a6b09
148743076
155976421
hex3d30cf0

64163056 has 20 divisors (see below), whose sum is σ = 128327104. Its totient is φ = 31046400.

The previous prime is 64163039. The next prime is 64163063. The reversal of 64163056 is 65036146.

64163056 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

64163056 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64185 + ... + 65176.

Almost surely, 264163056 is an apocalyptic number.

It is an amenable number.

64163056 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

64163056 is a wasteful number, since it uses less digits than its factorization.

64163056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129400 (or 129394 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 64163056 is about 8010.1845172256. The cubic root of 64163056 is about 400.3394119174.

The spelling of 64163056 in words is "sixty-four million, one hundred sixty-three thousand, fifty-six".

Divisors: 1 2 4 8 16 31 62 124 248 496 129361 258722 517444 1034888 2069776 4010191 8020382 16040764 32081528 64163056