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86968490 = 2571242407
BaseRepresentation
bin1010010111100…
…00100010101010
320001122110100012
411023300202222
5134230442430
612344011522
72104135310
oct513604252
9201573305
1086968490
1145100794
1225160ba2
131503015b
14b79c0b0
15797d695
hex52f08aa

86968490 has 16 divisors (see below), whose sum is σ = 178906752. Its totient is φ = 29817744.

The previous prime is 86968459. The next prime is 86968513. The reversal of 86968490 is 9486968.

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, 621134 + ... + 621273.

It is an arithmetic number, because the mean of its divisors is an integer number (11181672).

Almost surely, 286968490 is an apocalyptic number.

86968490 is an abundant number, since it is smaller than the sum of its proper divisors (91938262).

86968490 is a wasteful number, since it uses less digits than its factorization.

86968490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1242421.

The product of its (nonzero) digits is 746496, while the sum is 50.

The square root of 86968490 is about 9325.6897868201. The cubic root of 86968490 is about 443.0512605716.

The spelling of 86968490 in words is "eighty-six million, nine hundred sixty-eight thousand, four hundred ninety".

Divisors: 1 2 5 7 10 14 35 70 1242407 2484814 6212035 8696849 12424070 17393698 43484245 86968490