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64068408 = 233532957
BaseRepresentation
bin1111010001100…
…1101100111000
311110120000100000
43310121230320
5112400142113
610205113000
71405400235
oct364315470
9143500300
1064068408
113318a5a8
1219558760
1310372a01
14871a78c
155958373
hex3d19b38

64068408 has 48 divisors (see below), whose sum is σ = 179950680. Its totient is φ = 21355488.

The previous prime is 64068391. The next prime is 64068419. The reversal of 64068408 is 80486046.

64068408 is a `hidden beast` number, since 640 + 6 + 8 + 4 + 0 + 8 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14535 + ... + 18422.

Almost surely, 264068408 is an apocalyptic number.

It is an amenable number.

64068408 is an abundant number, since it is smaller than the sum of its proper divisors (115882272).

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

64068408 is a wasteful number, since it uses less digits than its factorization.

64068408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32978 (or 32962 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 64068408 is about 8004.2743581164. The cubic root of 64068408 is about 400.1424659193.

The spelling of 64068408 in words is "sixty-four million, sixty-eight thousand, four hundred eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 54 72 81 108 162 216 243 324 486 648 972 1944 32957 65914 98871 131828 197742 263656 296613 395484 593226 790968 889839 1186452 1779678 2372904 2669517 3559356 5339034 7118712 8008551 10678068 16017102 21356136 32034204 64068408