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86930512 = 245433157
BaseRepresentation
bin1010010111001…
…11010001010000
320001120112020121
411023213101100
5134223234022
612343120024
72103616504
oct513472120
9201515217
1086930512
11450851a9
1225143014
1315018a96
14b78c304
1579722c7
hex52e7450

86930512 has 10 divisors (see below), whose sum is σ = 168427898. Its totient is φ = 43465248.

The previous prime is 86930509. The next prime is 86930531. The reversal of 86930512 is 21503968.

It can be written as a sum of positive squares in only one way, i.e., 69155856 + 17774656 = 8316^2 + 4216^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2716563 + ... + 2716594.

Almost surely, 286930512 is an apocalyptic number.

It is an amenable number.

86930512 is a deficient number, since it is larger than the sum of its proper divisors (81497386).

86930512 is a wasteful number, since it uses less digits than its factorization.

86930512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5433165 (or 5433159 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 86930512 is about 9323.6533612099. The cubic root of 86930512 is about 442.9867596217.

The spelling of 86930512 in words is "eighty-six million, nine hundred thirty thousand, five hundred twelve".

Divisors: 1 2 4 8 16 5433157 10866314 21732628 43465256 86930512