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86760724 = 22171275893
BaseRepresentation
bin1010010101111…
…01110100010100
320001020220100011
411022331310110
5134202320344
612335330004
72102311501
oct512756424
9201226304
1086760724
1144a79686
1225080904
1314c8970b
14b7464a8
15793bd34
hex52bdd14

86760724 has 12 divisors (see below), whose sum is σ = 160762644. Its totient is φ = 40828544.

The previous prime is 86760703. The next prime is 86760767. The reversal of 86760724 is 42706768.

It can be written as a sum of positive squares in 2 ways, for example, as 59907600 + 26853124 = 7740^2 + 5182^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 637879 + ... + 638014.

It is an arithmetic number, because the mean of its divisors is an integer number (13396887).

Almost surely, 286760724 is an apocalyptic number.

It is an amenable number.

86760724 is a deficient number, since it is larger than the sum of its proper divisors (74001920).

86760724 is a wasteful number, since it uses less digits than its factorization.

86760724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1275914 (or 1275912 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 86760724 is about 9314.5436817914. The cubic root of 86760724 is about 442.6981656813.

The spelling of 86760724 in words is "eighty-six million, seven hundred sixty thousand, seven hundred twenty-four".

Divisors: 1 2 4 17 34 68 1275893 2551786 5103572 21690181 43380362 86760724