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86121083 = 711212973
BaseRepresentation
bin1010010001000…
…01101001111011
320000001101220202
411020201221323
5134021333313
612313512415
72064005606
oct510415173
9200041822
1086121083
1144682054
1224a1270b
1314ac4529
14b61b33d
157862558
hex5221a7b

86121083 has 4 divisors (see below), whose sum is σ = 87334128. Its totient is φ = 84908040.

The previous prime is 86121073. The next prime is 86121107. The reversal of 86121083 is 38012168.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 86121083 - 26 = 86121019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86121043) 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 in 3 ways as a sum of consecutive naturals, for example, 606416 + ... + 606557.

It is an arithmetic number, because the mean of its divisors is an integer number (21833532).

Almost surely, 286121083 is an apocalyptic number.

86121083 is a deficient number, since it is larger than the sum of its proper divisors (1213045).

86121083 is a wasteful number, since it uses less digits than its factorization.

86121083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1213044.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 86121083 is about 9280.1445570638. The cubic root of 86121083 is about 441.6075545112.

The spelling of 86121083 in words is "eighty-six million, one hundred twenty-one thousand, eighty-three".

Divisors: 1 71 1212973 86121083