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64745352 = 2333742821
BaseRepresentation
bin1111011011111…
…0111110001000
311111211101221000
43312332332020
5113033322402
610231415000
71414216650
oct366767610
9144741830
1064745352
1133602161
1219824460
131054bb79
148855360
155a3dc1c
hex3dbef88

64745352 has 64 divisors (see below), whose sum is σ = 205545600. Its totient is φ = 18498240.

The previous prime is 64745323. The next prime is 64745353. The reversal of 64745352 is 25354746.

64745352 is a `hidden beast` number, since 647 + 4 + 5 + 3 + 5 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (64745353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19899 + ... + 22922.

It is an arithmetic number, because the mean of its divisors is an integer number (3211650).

Almost surely, 264745352 is an apocalyptic number.

It is an amenable number.

64745352 is an abundant number, since it is smaller than the sum of its proper divisors (140800248).

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

64745352 is a wasteful number, since it uses less digits than its factorization.

64745352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42843 (or 42833 counting only the distinct ones).

The product of its digits is 100800, while the sum is 36.

The square root of 64745352 is about 8046.4496518651. The cubic root of 64745352 is about 401.5468272696.

The spelling of 64745352 in words is "sixty-four million, seven hundred forty-five thousand, three hundred fifty-two".

Divisors: 1 2 3 4 6 7 8 9 12 14 18 21 24 27 28 36 42 54 56 63 72 84 108 126 168 189 216 252 378 504 756 1512 42821 85642 128463 171284 256926 299747 342568 385389 513852 599494 770778 899241 1027704 1156167 1198988 1541556 1798482 2312334 2397976 2697723 3083112 3596964 4624668 5395446 7193928 8093169 9249336 10790892 16186338 21581784 32372676 64745352