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64604008488 = 23325110724437
BaseRepresentation
bin111100001010101100…
…101111000000101000
320011202100211200002010
4330022230233000220
52024302111232423
645402332035520
74444643003655
oct741254570050
9204670750063
1064604008488
1125442307858
121062b902ba0
13612754bb76
1431ac114c2c
151a31a38693
hexf0ab2f028

64604008488 has 32 divisors (see below), whose sum is σ = 162153502560. Its totient is φ = 21448872000.

The previous prime is 64604008477. The next prime is 64604008493. The reversal of 64604008488 is 88480040646.

It is a super-2 number, since 2×646040084882 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5356195 + ... + 5368242.

It is an arithmetic number, because the mean of its divisors is an integer number (5067296955).

Almost surely, 264604008488 is an apocalyptic number.

It is an amenable number.

64604008488 is an abundant number, since it is smaller than the sum of its proper divisors (97549494072).

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

64604008488 is a wasteful number, since it uses less digits than its factorization.

64604008488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10724697 (or 10724693 counting only the distinct ones).

The product of its (nonzero) digits is 1179648, while the sum is 48.

The spelling of 64604008488 in words is "sixty-four billion, six hundred four million, eight thousand, four hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 24 251 502 753 1004 1506 2008 3012 6024 10724437 21448874 32173311 42897748 64346622 85795496 128693244 257386488 2691833687 5383667374 8075501061 10767334748 16151002122 21534669496 32302004244 64604008488