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86942260 = 2255382021
BaseRepresentation
bin1010010111010…
…10001000110100
320001121010100201
411023222020310
5134224123020
612343250244
72103665656
oct513521064
9201533321
1086942260
1145093009
1225149984
1315021232
14b7926d6
157975a0a
hex52ea234

86942260 has 24 divisors (see below), whose sum is σ = 186025896. Its totient is φ = 34120320.

The previous prime is 86942257. The next prime is 86942281. The reversal of 86942260 is 6224968.

It can be written as a sum of positive squares in 4 ways, for example, as 42693156 + 44249104 = 6534^2 + 6652^2 .

It is a super-3 number, since 3×869422603 (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39951 + ... + 42070.

It is an arithmetic number, because the mean of its divisors is an integer number (7751079).

Almost surely, 286942260 is an apocalyptic number.

It is an amenable number.

86942260 is an abundant number, since it is smaller than the sum of its proper divisors (99083636).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86942260 is a wasteful number, since it uses less digits than its factorization.

86942260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82083 (or 82081 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 86942260 is about 9324.2833504779. The cubic root of 86942260 is about 443.0067141575.

The spelling of 86942260 in words is "eighty-six million, nine hundred forty-two thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 53 106 212 265 530 1060 82021 164042 328084 410105 820210 1640420 4347113 8694226 17388452 21735565 43471130 86942260