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86404213 = 737449743
BaseRepresentation
bin1010010011001…
…10110001110101
320000120210022001
411021212301311
5134104413323
612323535301
72066265220
oct511466165
9200523261
1086404213
1144855845
1224b2a531
1314b9336c
14b6925b7
1578bb3ad
hex5266c75

86404213 has 16 divisors (see below), whose sum is σ = 101779200. Its totient is φ = 71801856.

The previous prime is 86404193. The next prime is 86404247. The reversal of 86404213 is 31240468.

It is not a de Polignac number, because 86404213 - 29 = 86403701 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 (86404313) 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, 115920 + ... + 116662.

It is an arithmetic number, because the mean of its divisors is an integer number (6361200).

Almost surely, 286404213 is an apocalyptic number.

It is an amenable number.

86404213 is a deficient number, since it is larger than the sum of its proper divisors (15374987).

86404213 is a wasteful number, since it uses less digits than its factorization.

86404213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1236.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 86404213 is about 9295.3866514524. The cubic root of 86404213 is about 442.0909652870.

The spelling of 86404213 in words is "eighty-six million, four hundred four thousand, two hundred thirteen".

Divisors: 1 7 37 259 449 743 3143 5201 16613 27491 116291 192437 333607 2335249 12343459 86404213