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86471 = 7111123
BaseRepresentation
bin10101000111000111
311101121122
4111013013
510231341
61504155
7510050
oct250707
9141548
1086471
1159a70
124205b
1330488
1423727
151a94b
hex151c7

86471 has 8 divisors (see below), whose sum is σ = 107904. Its totient is φ = 67320.

The previous prime is 86467. The next prime is 86477. The reversal of 86471 is 17468.

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

It is not a de Polignac number, because 86471 - 22 = 86467 is a prime.

It is a super-3 number, since 3×864713 = 1939691662395333, which contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 86471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 485 + ... + 638.

It is an arithmetic number, because the mean of its divisors is an integer number (13488).

286471 is an apocalyptic number.

86471 is a deficient number, since it is larger than the sum of its proper divisors (21433).

86471 is a wasteful number, since it uses less digits than its factorization.

86471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1141.

The product of its digits is 1344, while the sum is 26.

The square root of 86471 is about 294.0595177851. The cubic root of 86471 is about 44.2204842161.

The spelling of 86471 in words is "eighty-six thousand, four hundred seventy-one".

Divisors: 1 7 11 77 1123 7861 12353 86471