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86121082 = 21710972309
BaseRepresentation
bin1010010001000…
…01101001111010
320000001101220201
411020201221322
5134021333312
612313512414
72064005605
oct510415172
9200041821
1086121082
1144682053
1224a1270a
1314ac4528
14b61b33c
157862557
hex5221a7a

86121082 has 16 divisors (see below), whose sum is σ = 136964520. Its totient is φ = 40473088.

The previous prime is 86121073. The next prime is 86121107. The reversal of 86121082 is 28012168.

It can be written as a sum of positive squares in 4 ways, for example, as 83557881 + 2563201 = 9141^2 + 1601^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 86121082.

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, 36144 + ... + 38452.

Almost surely, 286121082 is an apocalyptic number.

86121082 is a deficient number, since it is larger than the sum of its proper divisors (50843438).

86121082 is a wasteful number, since it uses less digits than its factorization.

86121082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3425.

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 86121082 is about 9280.1445031853. The cubic root of 86121082 is about 441.6075528020.

The spelling of 86121082 in words is "eighty-six million, one hundred twenty-one thousand, eighty-two".

Divisors: 1 2 17 34 1097 2194 2309 4618 18649 37298 39253 78506 2532973 5065946 43060541 86121082