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68732684 = 2217183171
BaseRepresentation
bin1000001100011…
…00011100001100
311210022222111222
410012030130030
5120043421214
610453102512
71463134556
oct406143414
9153288458
1068732684
1135885979
121b027a38
1311316a37
1491b24d6
15607a38e
hex418c70c

68732684 has 6 divisors (see below), whose sum is σ = 120282204. Its totient is φ = 34366340.

The previous prime is 68732681. The next prime is 68732693. The reversal of 68732684 is 48623786.

It is not an unprimeable number, because it can be changed into a prime (68732681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8591582 + ... + 8591589.

It is an arithmetic number, because the mean of its divisors is an integer number (20047034).

Almost surely, 268732684 is an apocalyptic number.

It is an amenable number.

68732684 is a deficient number, since it is larger than the sum of its proper divisors (51549520).

68732684 is a wasteful number, since it uses less digits than its factorization.

68732684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17183175 (or 17183173 counting only the distinct ones).

The product of its digits is 387072, while the sum is 44.

The square root of 68732684 is about 8290.5177160416. The cubic root of 68732684 is about 409.6262387951.

The spelling of 68732684 in words is "sixty-eight million, seven hundred thirty-two thousand, six hundred eighty-four".

Divisors: 1 2 4 17183171 34366342 68732684