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64550148 = 22313413783
BaseRepresentation
bin1111011000111…
…1010100000100
311111110111011020
43312033110010
5113011101043
610223311140
71412444565
oct366172404
9144414136
1064550148
1133489533
121974b4b0
13104b1070
14880416c
155a00e83
hex3d8f504

64550148 has 24 divisors (see below), whose sum is σ = 162203328. Its totient is φ = 19861536.

The previous prime is 64550137. The next prime is 64550149. The reversal of 64550148 is 84105546.

64550148 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (64550149) 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 7 ways as a sum of consecutive naturals, for example, 206736 + ... + 207047.

It is an arithmetic number, because the mean of its divisors is an integer number (6758472).

Almost surely, 264550148 is an apocalyptic number.

It is an amenable number.

64550148 is an abundant number, since it is smaller than the sum of its proper divisors (97653180).

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

64550148 is a wasteful number, since it uses less digits than its factorization.

64550148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413803 (or 413801 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 64550148 is about 8034.3106736048. The cubic root of 64550148 is about 401.1428731591.

The spelling of 64550148 in words is "sixty-four million, five hundred fifty thousand, one hundred forty-eight".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 413783 827566 1241349 1655132 2482698 4965396 5379179 10758358 16137537 21516716 32275074 64550148