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86896919 = 791099961
BaseRepresentation
bin1010010110111…
…11000100010111
320001111211011102
411023133010113
5134221200134
612342300315
72103416534
oct513370427
9201454142
1086896919
1145061a3a
122512769b
13150066c5
14b77dd8b
15796737e
hex52df117

86896919 has 4 divisors (see below), whose sum is σ = 87996960. Its totient is φ = 85796880.

The previous prime is 86896907. The next prime is 86896939. The reversal of 86896919 is 91969868.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 86896919 - 212 = 86892823 is a prime.

It is a super-2 number, since 2×868969192 = 15102149063385122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86896939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 549902 + ... + 550059.

It is an arithmetic number, because the mean of its divisors is an integer number (21999240).

Almost surely, 286896919 is an apocalyptic number.

86896919 is a deficient number, since it is larger than the sum of its proper divisors (1100041).

86896919 is a wasteful number, since it uses less digits than its factorization.

86896919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100040.

The product of its digits is 1679616, while the sum is 56.

The square root of 86896919 is about 9321.8516937355. The cubic root of 86896919 is about 442.9296903942.

The spelling of 86896919 in words is "eighty-six million, eight hundred ninety-six thousand, nine hundred nineteen".

Divisors: 1 79 1099961 86896919