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68837239072 = 257409751367
BaseRepresentation
bin100000000011100000…
…1001110100100100000
320120200101102001202001
41000013001032210200
52111434313122242
651342352533344
74654564610050
oct1000701164440
9216611361661
1068837239072
1127214910628
1211411551254
136650591134
14349041b560
151bcd4cdeb7
hex100704e920

68837239072 has 48 divisors (see below), whose sum is σ = 155262683520. Its totient is φ = 29429503488.

The previous prime is 68837239067. The next prime is 68837239087. The reversal of 68837239072 is 27093273886.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 284068 + ... + 467299.

It is an arithmetic number, because the mean of its divisors is an integer number (3234639240).

Almost surely, 268837239072 is an apocalyptic number.

It is an amenable number.

68837239072 is an abundant number, since it is smaller than the sum of its proper divisors (86425444448).

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

68837239072 is a wasteful number, since it uses less digits than its factorization.

68837239072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751793 (or 751785 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 55.

The spelling of 68837239072 in words is "sixty-eight billion, eight hundred thirty-seven million, two hundred thirty-nine thousand, seventy-two".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 224 409 818 1636 2863 3272 5726 6544 11452 13088 22904 45808 91616 751367 1502734 3005468 5259569 6010936 10519138 12021872 21038276 24043744 42076552 84153104 168306208 307309103 614618206 1229236412 2151163721 2458472824 4302327442 4916945648 8604654884 9833891296 17209309768 34418619536 68837239072