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86568620 = 2259744623
BaseRepresentation
bin1010010100011…
…10111010101100
320000220010211012
411022032322230
5134130143440
612331244352
72100551435
oct512167254
9200803735
1086568620
1144958316
1224ba96b8
1314c20148
14b6d648c
1578eee65
hex528eeac

86568620 has 24 divisors (see below), whose sum is σ = 183672384. Its totient is φ = 34269696.

The previous prime is 86568613. The next prime is 86568631. The reversal of 86568620 is 2686568.

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, 20372 + ... + 24251.

It is an arithmetic number, because the mean of its divisors is an integer number (7653016).

Almost surely, 286568620 is an apocalyptic number.

It is an amenable number.

86568620 is an abundant number, since it is smaller than the sum of its proper divisors (97103764).

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

86568620 is a wasteful number, since it uses less digits than its factorization.

86568620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44729 (or 44727 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 86568620 is about 9304.2259215907. The cubic root of 86568620 is about 442.3711861852.

The spelling of 86568620 in words is "eighty-six million, five hundred sixty-eight thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 97 194 388 485 970 1940 44623 89246 178492 223115 446230 892460 4328431 8656862 17313724 21642155 43284310 86568620