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68723888 = 2411338011
BaseRepresentation
bin1000001100010…
…10010010110000
311210022112110012
410012022102300
5120043131023
610452554052
71463100122
oct406122260
9153275405
1068723888
113587a302
121b022928
1311312a2c
1491ad212
156077978
hex418a4b0

68723888 has 20 divisors (see below), whose sum is σ = 134334408. Its totient is φ = 34056960.

The previous prime is 68723887. The next prime is 68723903. The reversal of 68723888 is 88832786.

It is not an unprimeable number, because it can be changed into a prime (68723887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17198 + ... + 20813.

Almost surely, 268723888 is an apocalyptic number.

It is an amenable number.

68723888 is a deficient number, since it is larger than the sum of its proper divisors (65610520).

68723888 is a wasteful number, since it uses less digits than its factorization.

68723888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38132 (or 38126 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 50.

The square root of 68723888 is about 8289.9872135004. The cubic root of 68723888 is about 409.6087642066.

The spelling of 68723888 in words is "sixty-eight million, seven hundred twenty-three thousand, eight hundred eighty-eight".

Divisors: 1 2 4 8 16 113 226 452 904 1808 38011 76022 152044 304088 608176 4295243 8590486 17180972 34361944 68723888