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68715158 = 2316118169
BaseRepresentation
bin1000001100010…
…00001010010110
311210022002110212
410012020022112
5120042341113
610452445422
71463032511
oct406101226
9153262425
1068715158
1135873796
121b019872
131130ba75
1491a9d78
1560750a8
hex4188296

68715158 has 16 divisors (see below), whose sum is σ = 108147840. Its totient is φ = 32702400.

The previous prime is 68715151. The next prime is 68715167. The reversal of 68715158 is 85151786.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68715151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5303 + ... + 12866.

It is an arithmetic number, because the mean of its divisors is an integer number (6759240).

Almost surely, 268715158 is an apocalyptic number.

68715158 is a deficient number, since it is larger than the sum of its proper divisors (39432682).

68715158 is a wasteful number, since it uses less digits than its factorization.

68715158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18263.

The product of its digits is 67200, while the sum is 41.

The square root of 68715158 is about 8289.4606579680. The cubic root of 68715158 is about 409.5914192627.

The spelling of 68715158 in words is "sixty-eight million, seven hundred fifteen thousand, one hundred fifty-eight".

Divisors: 1 2 31 61 62 122 1891 3782 18169 36338 563239 1108309 1126478 2216618 34357579 68715158