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68885170 = 2521132647
BaseRepresentation
bin1000001101100…
…01101010110010
311210121201200121
410012301222302
5120113311140
610500240454
71464341254
oct406615262
9153551617
1068885170
113597a4a2
121b0a012a
131136b273
149211cd4
1560aa64a
hex41b1ab2

68885170 has 16 divisors (see below), whose sum is σ = 124584768. Its totient is φ = 27422640.

The previous prime is 68885153. The next prime is 68885177. The reversal of 68885170 is 7158886.

It is not an unprimeable number, because it can be changed into a prime (68885177) 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, 14214 + ... + 18433.

It is an arithmetic number, because the mean of its divisors is an integer number (7786548).

Almost surely, 268885170 is an apocalyptic number.

68885170 is a deficient number, since it is larger than the sum of its proper divisors (55699598).

68885170 is a wasteful number, since it uses less digits than its factorization.

68885170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32865.

The product of its (nonzero) digits is 107520, while the sum is 43.

The square root of 68885170 is about 8299.7090310444. The cubic root of 68885170 is about 409.9289387056.

It can be divided in two parts, 688 and 85170, that added together give a palindrome (85858).

The spelling of 68885170 in words is "sixty-eight million, eight hundred eighty-five thousand, one hundred seventy".

Divisors: 1 2 5 10 211 422 1055 2110 32647 65294 163235 326470 6888517 13777034 34442585 68885170