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86048391 = 31113200579
BaseRepresentation
bin1010010000011…
…11111010000111
312222220201012110
411020033322013
5134012022031
612312152103
72063253642
oct510177207
9188821173
1086048391
1144632480
1224998633
1314a9a410
14b5dca59
15784ac46
hex520fe87

86048391 has 16 divisors (see below), whose sum is σ = 134789760. Its totient is φ = 48138720.

The previous prime is 86048377. The next prime is 86048411. The reversal of 86048391 is 19384068.

It is not a de Polignac number, because 86048391 - 211 = 86046343 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86048311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99861 + ... + 100718.

It is an arithmetic number, because the mean of its divisors is an integer number (8424360).

Almost surely, 286048391 is an apocalyptic number.

86048391 is a deficient number, since it is larger than the sum of its proper divisors (48741369).

86048391 is a wasteful number, since it uses less digits than its factorization.

86048391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200606.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 86048391 is about 9276.2271964414. The cubic root of 86048391 is about 441.4832706875.

The spelling of 86048391 in words is "eighty-six million, forty-eight thousand, three hundred ninety-one".

Divisors: 1 3 11 13 33 39 143 429 200579 601737 2206369 2607527 6619107 7822581 28682797 86048391