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86289671 = 1317532139
BaseRepresentation
bin1010010010010…
…10110100000111
320000100222011202
411021022310013
5134042232141
612321253115
72065310246
oct511126407
9200328152
1086289671
1144787786
1224a9419b
1314b531a0
14b66295d
15789749b
hex524ad07

86289671 has 24 divisors (see below), whose sum is σ = 101006640. Its totient is φ = 73022976.

The previous prime is 86289649. The next prime is 86289677. The reversal of 86289671 is 17698268.

It is not a de Polignac number, because 86289671 - 26 = 86289607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86289677) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 620720 + ... + 620858.

It is an arithmetic number, because the mean of its divisors is an integer number (4208610).

Almost surely, 286289671 is an apocalyptic number.

86289671 is a deficient number, since it is larger than the sum of its proper divisors (14716969).

86289671 is a wasteful number, since it uses less digits than its factorization.

86289671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275 (or 222 counting only the distinct ones).

The product of its digits is 290304, while the sum is 47.

The square root of 86289671 is about 9289.2233798095. The cubic root of 86289671 is about 441.8955258356.

The spelling of 86289671 in words is "eighty-six million, two hundred eighty-nine thousand, six hundred seventy-one".

Divisors: 1 13 17 53 139 221 689 901 1807 2363 2809 7367 11713 30719 36517 47753 95771 125239 390451 620789 1628107 5075863 6637667 86289671