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68457588 = 2235779887
BaseRepresentation
bin1000001010010…
…01010001110100
311202211000011020
410011021101310
5120011120323
610443141140
71460610543
oct405112164
9152730136
1068457588
1135708221
121ab147b0
131124b764
14914015a
156023ae3
hex4149474

68457588 has 24 divisors (see below), whose sum is σ = 160027392. Its totient is φ = 22777344.

The previous prime is 68457569. The next prime is 68457593. The reversal of 68457588 is 88575486.

It is a self number, because there is not a number n which added to its sum of digits gives 68457588.

It is a congruent number.

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, 1981 + ... + 11867.

It is an arithmetic number, because the mean of its divisors is an integer number (6667808).

Almost surely, 268457588 is an apocalyptic number.

It is an amenable number.

68457588 is an abundant number, since it is smaller than the sum of its proper divisors (91569804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68457588 is a wasteful number, since it uses less digits than its factorization.

68457588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10471 (or 10469 counting only the distinct ones).

The product of its digits is 2150400, while the sum is 51.

The square root of 68457588 is about 8273.9100792793. The cubic root of 68457588 is about 409.0790114430.

The spelling of 68457588 in words is "sixty-eight million, four hundred fifty-seven thousand, five hundred eighty-eight".

Divisors: 1 2 3 4 6 12 577 1154 1731 2308 3462 6924 9887 19774 29661 39548 59322 118644 5704799 11409598 17114397 22819196 34228794 68457588