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68291364 = 22317931793
BaseRepresentation
bin1000001001000…
…00101100100100
311202111120010210
410010200230210
5114440310424
610435415420
71456316121
oct404405444
9152446123
1068291364
1135604349
121aa54570
13111c0bbb
1490d9748
155ede729
hex4120b24

68291364 has 24 divisors (see below), whose sum is σ = 160241760. Its totient is φ = 22635904.

The previous prime is 68291351. The next prime is 68291383. The reversal of 68291364 is 46319286.

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, 13749 + ... + 18044.

It is an arithmetic number, because the mean of its divisors is an integer number (6676740).

Almost surely, 268291364 is an apocalyptic number.

It is an amenable number.

68291364 is an abundant number, since it is smaller than the sum of its proper divisors (91950396).

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

68291364 is a wasteful number, since it uses less digits than its factorization.

68291364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31979 (or 31977 counting only the distinct ones).

The product of its digits is 62208, while the sum is 39.

The square root of 68291364 is about 8263.8589048943. The cubic root of 68291364 is about 408.7476439371.

The spelling of 68291364 in words is "sixty-eight million, two hundred ninety-one thousand, three hundred sixty-four".

Divisors: 1 2 3 4 6 12 179 358 537 716 1074 2148 31793 63586 95379 127172 190758 381516 5690947 11381894 17072841 22763788 34145682 68291364