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86808740 = 2259194723
BaseRepresentation
bin1010010110010…
…01100010100100
320001100100012112
411023021202210
5134210334430
612340340152
72102601464
oct513114244
9201310175
1086808740
1145001767
12250a4658
1314ca5525
14b759ba4
15794b195
hex52c98a4

86808740 has 24 divisors (see below), whose sum is σ = 182535360. Its totient is φ = 34678368.

The previous prime is 86808737. The next prime is 86808763. The reversal of 86808740 is 4780868.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16019 + ... + 20741.

It is an arithmetic number, because the mean of its divisors is an integer number (7605640).

Almost surely, 286808740 is an apocalyptic number.

It is an amenable number.

86808740 is an abundant number, since it is smaller than the sum of its proper divisors (95726620).

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

86808740 is a wasteful number, since it uses less digits than its factorization.

86808740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5651 (or 5649 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 41.

The square root of 86808740 is about 9317.1207999038. The cubic root of 86808740 is about 442.7798181234.

The spelling of 86808740 in words is "eighty-six million, eight hundred eight thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 919 1838 3676 4595 4723 9190 9446 18380 18892 23615 47230 94460 4340437 8680874 17361748 21702185 43404370 86808740