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64696871204 = 22726355715773
BaseRepresentation
bin111100010000001110…
…111110100100100100
320011222211120120202222
4330100032332210210
52024444344334304
645415450251512
74450151221520
oct742016764444
9204884516688
1064696871204
112548a7739a9
1210656a26b98
136140863b14
1431ba5a8d80
151a39c7d4be
hexf103be924

64696871204 has 48 divisors (see below), whose sum is σ = 130127171328. Its totient is φ = 27570465408.

The previous prime is 64696871191. The next prime is 64696871249. The reversal of 64696871204 is 40217869646.

It is an unprimeable number.

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, 4093862 + ... + 4109634.

It is an arithmetic number, because the mean of its divisors is an integer number (2710982736).

Almost surely, 264696871204 is an apocalyptic number.

It is an amenable number.

64696871204 is an abundant number, since it is smaller than the sum of its proper divisors (65430300124).

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

64696871204 is a wasteful number, since it uses less digits than its factorization.

64696871204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16604 (or 16602 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 53.

The spelling of 64696871204 in words is "sixty-four billion, six hundred ninety-six million, eight hundred seventy-one thousand, two hundred four".

Divisors: 1 2 4 7 14 28 263 526 557 1052 1114 1841 2228 3682 3899 7364 7798 15596 15773 31546 63092 110411 146491 220822 292982 441644 585964 1025437 2050874 4101748 4148299 8296598 8785561 16593196 17571122 29038093 35142244 58076186 61498927 116152372 122997854 245995708 2310602543 4621205086 9242410172 16174217801 32348435602 64696871204