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64145048 = 2311728921
BaseRepresentation
bin1111010010110…
…0011010011000
311110200220110112
43310230122120
5112410120143
610210503452
71406136542
oct364543230
9143626415
1064145048
1133232140
1219594b88
131039b866
14873a692
155970e18
hex3d2c698

64145048 has 16 divisors (see below), whose sum is σ = 131205960. Its totient is φ = 29156800.

The previous prime is 64145041. The next prime is 64145051. The reversal of 64145048 is 84054146.

64145048 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×641450482 = 8229174365844608, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64145041) by changing a digit.

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, 364373 + ... + 364548.

Almost surely, 264145048 is an apocalyptic number.

It is an amenable number.

64145048 is an abundant number, since it is smaller than the sum of its proper divisors (67060912).

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

64145048 is a wasteful number, since it uses less digits than its factorization.

64145048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728938 (or 728934 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 64145048 is about 8009.0603693567. The cubic root of 64145048 is about 400.3019553334.

The spelling of 64145048 in words is "sixty-four million, one hundred forty-five thousand, forty-eight".

Divisors: 1 2 4 8 11 22 44 88 728921 1457842 2915684 5831368 8018131 16036262 32072524 64145048