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86189271 = 374104251
BaseRepresentation
bin1010010001100…
…10010011010111
320000011212110020
411020302103113
5134031024041
612315200223
72064411450
oct510622327
9200155406
1086189271
1144719303
1224a46073
1314b1958c
14b638127
157877866
hex52324d7

86189271 has 8 divisors (see below), whose sum is σ = 131336064. Its totient is φ = 49251000.

The previous prime is 86189261. The next prime is 86189287. The reversal of 86189271 is 17298168.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 86189271 - 25 = 86189239 is a prime.

It is a super-2 number, since 2×861892712 = 14857180871022882, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86189221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2052105 + ... + 2052146.

It is an arithmetic number, because the mean of its divisors is an integer number (16417008).

Almost surely, 286189271 is an apocalyptic number.

86189271 is a deficient number, since it is larger than the sum of its proper divisors (45146793).

86189271 is a wasteful number, since it uses less digits than its factorization.

86189271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4104261.

The product of its digits is 48384, while the sum is 42.

The square root of 86189271 is about 9283.8176953234. The cubic root of 86189271 is about 441.7240741486.

The spelling of 86189271 in words is "eighty-six million, one hundred eighty-nine thousand, two hundred seventy-one".

Divisors: 1 3 7 21 4104251 12312753 28729757 86189271