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68756315 = 5233471723
BaseRepresentation
bin1000001100100…
…10001101011011
311210101011221012
410012102031123
5120100200230
610453404135
71463263505
oct406221533
9153334835
1068756315
11358a1701
121b03964b
1311324714
1491bad75
156082395
hex419235b

68756315 has 16 divisors (see below), whose sum is σ = 86393088. Its totient is φ = 52431456.

The previous prime is 68756309. The next prime is 68756339. The reversal of 68756315 is 51365786.

It is a cyclic number.

It is not a de Polignac number, because 68756315 - 26 = 68756251 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39044 + ... + 40766.

It is an arithmetic number, because the mean of its divisors is an integer number (5399568).

Almost surely, 268756315 is an apocalyptic number.

68756315 is a deficient number, since it is larger than the sum of its proper divisors (17636773).

68756315 is a wasteful number, since it uses less digits than its factorization.

68756315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2098.

The product of its digits is 151200, while the sum is 41.

The square root of 68756315 is about 8291.9427759723. The cubic root of 68756315 is about 409.6731779801.

The spelling of 68756315 in words is "sixty-eight million, seven hundred fifty-six thousand, three hundred fifteen".

Divisors: 1 5 23 115 347 1723 1735 7981 8615 39629 39905 198145 597881 2989405 13751263 68756315