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86838680 = 2357130577
BaseRepresentation
bin1010010110100…
…00110110011000
320001101212021102
411023100312120
5134212314210
612341130532
72103054665
oct513206630
9201355242
1086838680
1145022205
12250b9a48
1314cb6046
14b766a6c
157954ea5
hex52d0d98

86838680 has 32 divisors (see below), whose sum is σ = 198145440. Its totient is φ = 34245120.

The previous prime is 86838679. The next prime is 86838701. The reversal of 86838680 is 8683868.

It is a congruent number.

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, 12449 + ... + 18128.

It is an arithmetic number, because the mean of its divisors is an integer number (6192045).

Almost surely, 286838680 is an apocalyptic number.

It is an amenable number.

86838680 is an abundant number, since it is smaller than the sum of its proper divisors (111306760).

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

86838680 is a wasteful number, since it uses less digits than its factorization.

86838680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30659 (or 30655 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 47.

The square root of 86838680 is about 9318.7273809249. The cubic root of 86838680 is about 442.8307166234.

The spelling of 86838680 in words is "eighty-six million, eight hundred thirty-eight thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 71 142 284 355 568 710 1420 2840 30577 61154 122308 152885 244616 305770 611540 1223080 2170967 4341934 8683868 10854835 17367736 21709670 43419340 86838680