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86308984 = 2310788623
BaseRepresentation
bin1010010010011…
…11100001111000
320000101221200001
411021033201320
5134043341414
612321522344
72065420456
oct511174170
9200357601
1086308984
11447a0243
1224aa33b4
1314b5bc08
14b6699d6
15789d074
hex524f878

86308984 has 8 divisors (see below), whose sum is σ = 161829360. Its totient is φ = 43154488.

The previous prime is 86308939. The next prime is 86308987. The reversal of 86308984 is 48980368.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×863089842 = 14898481438224512, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86308987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5394304 + ... + 5394319.

It is an arithmetic number, because the mean of its divisors is an integer number (20228670).

Almost surely, 286308984 is an apocalyptic number.

It is an amenable number.

86308984 is a deficient number, since it is larger than the sum of its proper divisors (75520376).

86308984 is a wasteful number, since it uses less digits than its factorization.

86308984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10788629 (or 10788625 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 46.

The square root of 86308984 is about 9290.2628595751. The cubic root of 86308984 is about 441.9284911240.

The spelling of 86308984 in words is "eighty-six million, three hundred eight thousand, nine hundred eighty-four".

Divisors: 1 2 4 8 10788623 21577246 43154492 86308984