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86180308 = 2221545077
BaseRepresentation
bin1010010001100…
…00000111010100
320000011102011021
411020300013110
5134030232213
612315050524
72064343354
oct510600724
9200142137
1086180308
11447125a5
1224a40a44
1314b15486
14b634b64
157874d8d
hex52301d4

86180308 has 6 divisors (see below), whose sum is σ = 150815546. Its totient is φ = 43090152.

The previous prime is 86180273. The next prime is 86180309. The reversal of 86180308 is 80308168.

It can be written as a sum of positive squares in only one way, i.e., 70593604 + 15586704 = 8402^2 + 3948^2 .

It is a super-3 number, since 3×861803083 (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86180309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10772535 + ... + 10772542.

Almost surely, 286180308 is an apocalyptic number.

It is an amenable number.

86180308 is a deficient number, since it is larger than the sum of its proper divisors (64635238).

86180308 is a wasteful number, since it uses less digits than its factorization.

86180308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21545081 (or 21545079 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 86180308 is about 9283.3349611010. The cubic root of 86180308 is about 441.7087616854.

The spelling of 86180308 in words is "eighty-six million, one hundred eighty thousand, three hundred eight".

Divisors: 1 2 4 21545077 43090154 86180308