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64017672 = 23397107257
BaseRepresentation
bin1111010000110…
…1010100001000
311110110102201220
43310031110020
5112342031142
610204042040
71405066305
oct364152410
9143412656
1064017672
1133155474
1219533320
13103558a4
1487060ac
1559482ec
hex3d0d508

64017672 has 64 divisors (see below), whose sum is σ = 163840320. Its totient is φ = 20840448.

The previous prime is 64017649. The next prime is 64017673. The reversal of 64017672 is 27671046.

It is not an unprimeable number, because it can be changed into a prime (64017673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 248968 + ... + 249224.

It is an arithmetic number, because the mean of its divisors is an integer number (2560005).

Almost surely, 264017672 is an apocalyptic number.

It is an amenable number.

64017672 is an abundant number, since it is smaller than the sum of its proper divisors (99822648).

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

64017672 is a wasteful number, since it uses less digits than its factorization.

64017672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470 (or 466 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 64017672 is about 8001.1044237655. The cubic root of 64017672 is about 400.0368132785.

The spelling of 64017672 in words is "sixty-four million, seventeen thousand, six hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 24 97 107 194 214 257 291 321 388 428 514 582 642 771 776 856 1028 1164 1284 1542 2056 2328 2568 3084 6168 10379 20758 24929 27499 31137 41516 49858 54998 62274 74787 82497 83032 99716 109996 124548 149574 164994 199432 219992 249096 299148 329988 598296 659976 2667403 5334806 8002209 10669612 16004418 21339224 32008836 64017672