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68107756 = 22533111033
BaseRepresentation
bin1000000111100…
…11110111101100
311202011020021111
410003303313230
5114413422011
610431441404
71454622613
oct403636754
9152136244
1068107756
1135499402
121a986264
1311158462
14908c87a
155ea5121
hex40f3dec

68107756 has 24 divisors (see below), whose sum is σ = 121945824. Its totient is φ = 33271680.

The previous prime is 68107727. The next prime is 68107783. The reversal of 68107756 is 65770186.

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, 65416 + ... + 66448.

It is an arithmetic number, because the mean of its divisors is an integer number (5081076).

Almost surely, 268107756 is an apocalyptic number.

It is an amenable number.

68107756 is a deficient number, since it is larger than the sum of its proper divisors (53838068).

68107756 is a wasteful number, since it uses less digits than its factorization.

68107756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1401 (or 1399 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 68107756 is about 8252.7423320979. The cubic root of 68107756 is about 408.3809958340.

The spelling of 68107756 in words is "sixty-eight million, one hundred seven thousand, seven hundred fifty-six".

Divisors: 1 2 4 53 106 212 311 622 1033 1244 2066 4132 16483 32966 54749 65932 109498 218996 321263 642526 1285052 17026939 34053878 68107756