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86790051 = 3210988471
BaseRepresentation
bin1010010110001…
…00111110100011
320001022101120100
411023010332203
5134204240201
612340113443
72102463135
oct513047643
9201271510
1086790051
1144a99717
1225095883
1314c99b7a
14b753055
157945886
hex52c4fa3

86790051 has 12 divisors (see below), whose sum is σ = 126514960. Its totient is φ = 57328560.

The previous prime is 86790037. The next prime is 86790061. The reversal of 86790051 is 15009768.

It is not a de Polignac number, because 86790051 - 223 = 78401443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86789988 and 86790015.

It is not an unprimeable number, because it can be changed into a prime (86790001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43255 + ... + 45216.

Almost surely, 286790051 is an apocalyptic number.

86790051 is a deficient number, since it is larger than the sum of its proper divisors (39724909).

86790051 is a wasteful number, since it uses less digits than its factorization.

86790051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88586 (or 88583 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 86790051 is about 9316.1178073273. The cubic root of 86790051 is about 442.7480405783.

The spelling of 86790051 in words is "eighty-six million, seven hundred ninety thousand, fifty-one".

Divisors: 1 3 9 109 327 981 88471 265413 796239 9643339 28930017 86790051