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68897158 = 21121716747
BaseRepresentation
bin1000001101101…
…00100110000110
311210122100010121
410012310212012
5120114202113
610500412154
71464421231
oct406644606
9153570117
1068897158
1135988500
121b0a705a
1311373865
149216418
1560ade8d
hex41b4986

68897158 has 24 divisors (see below), whose sum is σ = 120284136. Its totient is φ = 29472960.

The previous prime is 68897149. The next prime is 68897177. The reversal of 68897158 is 85179886.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4260 + ... + 12487.

It is an arithmetic number, because the mean of its divisors is an integer number (5011839).

Almost surely, 268897158 is an apocalyptic number.

68897158 is a deficient number, since it is larger than the sum of its proper divisors (51386978).

68897158 is a wasteful number, since it uses less digits than its factorization.

68897158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16788 (or 16777 counting only the distinct ones).

The product of its digits is 967680, while the sum is 52.

The square root of 68897158 is about 8300.4311936188. The cubic root of 68897158 is about 409.9527171331.

The spelling of 68897158 in words is "sixty-eight million, eight hundred ninety-seven thousand, one hundred fifty-eight".

Divisors: 1 2 11 17 22 34 121 187 242 374 2057 4114 16747 33494 184217 284699 368434 569398 2026387 3131689 4052774 6263378 34448579 68897158