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86879133 = 3211877567
BaseRepresentation
bin1010010110110…
…10101110011101
320001110220202200
411023122232131
5134220113013
612342042113
72103313635
oct513325635
9201426680
1086879133
114504a640
1225119339
1314ccb593
14b7776c5
157961e73
hex52dab9d

86879133 has 12 divisors (see below), whose sum is σ = 136900608. Its totient is φ = 52653960.

The previous prime is 86879131. The next prime is 86879141. The reversal of 86879133 is 33197868.

It is a happy number.

It is not a de Polignac number, because 86879133 - 21 = 86879131 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86879131) 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, 438685 + ... + 438882.

It is an arithmetic number, because the mean of its divisors is an integer number (11408384).

Almost surely, 286879133 is an apocalyptic number.

It is an amenable number.

86879133 is a deficient number, since it is larger than the sum of its proper divisors (50021475).

86879133 is a wasteful number, since it uses less digits than its factorization.

86879133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877584 (or 877581 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 86879133 is about 9320.8976499048. The cubic root of 86879133 is about 442.8994688201.

The spelling of 86879133 in words is "eighty-six million, eight hundred seventy-nine thousand, one hundred thirty-three".

Divisors: 1 3 9 11 33 99 877567 2632701 7898103 9653237 28959711 86879133