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86072589 = 329563621
BaseRepresentation
bin1010010000101…
…01110100001101
312222221221101200
411020111310031
5134013310324
612312500113
72063414331
oct510256415
9188857350
1086072589
1144649679
12249aa639
1314aa8435
14b6077c1
157852ec9
hex5215d0d

86072589 has 6 divisors (see below), whose sum is σ = 124327086. Its totient is φ = 57381720.

The previous prime is 86072587. The next prime is 86072611. The reversal of 86072589 is 98527068.

86072589 is a `hidden beast` number, since 8 + 60 + 7 + 2 + 589 = 666.

It can be written as a sum of positive squares in only one way, i.e., 83722500 + 2350089 = 9150^2 + 1533^2 .

It is not a de Polignac number, because 86072589 - 21 = 86072587 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86072587) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4781802 + ... + 4781819.

It is an arithmetic number, because the mean of its divisors is an integer number (20721181).

Almost surely, 286072589 is an apocalyptic number.

It is an amenable number.

86072589 is a deficient number, since it is larger than the sum of its proper divisors (38254497).

86072589 is a wasteful number, since it uses less digits than its factorization.

86072589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9563627 (or 9563624 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 86072589 is about 9277.5314065758. The cubic root of 86072589 is about 441.5246505468.

The spelling of 86072589 in words is "eighty-six million, seventy-two thousand, five hundred eighty-nine".

Divisors: 1 3 9 9563621 28690863 86072589