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82906089 = 372563987
BaseRepresentation
bin1001111000100…
…00101111101001
312210000001202220
410330100233221
5132210443324
612120544253
72024455500
oct474205751
9183001686
1082906089
1142886632
1223922089
131423a076
14b021837
157429b79
hex4f10be9

82906089 has 12 divisors (see below), whose sum is σ = 128589264. Its totient is φ = 47374824.

The previous prime is 82906051. The next prime is 82906091. The reversal of 82906089 is 98060928.

It is not a de Polignac number, because 82906089 - 213 = 82897897 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82906089.

It is not an unprimeable number, because it can be changed into a prime (82906009) 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, 281847 + ... + 282140.

It is an arithmetic number, because the mean of its divisors is an integer number (10715772).

Almost surely, 282906089 is an apocalyptic number.

It is an amenable number.

82906089 is a deficient number, since it is larger than the sum of its proper divisors (45683175).

82906089 is a wasteful number, since it uses less digits than its factorization.

82906089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564004 (or 563997 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 82906089 is about 9105.2780847155. The cubic root of 82906089 is about 436.0424884245.

The spelling of 82906089 in words is "eighty-two million, nine hundred six thousand, eighty-nine".

Divisors: 1 3 7 21 49 147 563987 1691961 3947909 11843727 27635363 82906089