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86424874 = 253899161
BaseRepresentation
bin1010010011010…
…11110100101010
320000121211122021
411021223310222
5134111043444
612324215054
72066412364
oct511536452
9200554567
1086424874
114486a318
1224b3a48a
1314b9c8a3
14b699d34
1578c2584
hex526bd2a

86424874 has 16 divisors (see below), whose sum is σ = 133581960. Its totient is φ = 41916160.

The previous prime is 86424857. The next prime is 86424887. The reversal of 86424874 is 47842468.

It can be written as a sum of positive squares in 4 ways, for example, as 64400625 + 22024249 = 8025^2 + 4693^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 86424874.

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, 4854 + ... + 14014.

Almost surely, 286424874 is an apocalyptic number.

86424874 is a deficient number, since it is larger than the sum of its proper divisors (47157086).

86424874 is a wasteful number, since it uses less digits than its factorization.

86424874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9305.

The product of its digits is 344064, while the sum is 43.

The square root of 86424874 is about 9296.4979427739. The cubic root of 86424874 is about 442.1262001179.

The spelling of 86424874 in words is "eighty-six million, four hundred twenty-four thousand, eight hundred seventy-four".

Divisors: 1 2 53 89 106 178 4717 9161 9434 18322 485533 815329 971066 1630658 43212437 86424874