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86900245 = 517380049
BaseRepresentation
bin1010010110111…
…11111000010101
320001111222201121
411023133320111
5134221301440
612342323541
72103432325
oct513377025
9201458647
1086900245
1145064493
12251295b1
1315008083
14b781285
15796834a
hex52dfe15

86900245 has 4 divisors (see below), whose sum is σ = 104280300. Its totient is φ = 69520192.

The previous prime is 86900221. The next prime is 86900257. The reversal of 86900245 is 54200968.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 51008164 + 35892081 = 7142^2 + 5991^2 .

It is a cyclic number.

It is not a de Polignac number, because 86900245 - 25 = 86900213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86900245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8690020 + ... + 8690029.

It is an arithmetic number, because the mean of its divisors is an integer number (26070075).

Almost surely, 286900245 is an apocalyptic number.

It is an amenable number.

86900245 is a deficient number, since it is larger than the sum of its proper divisors (17380055).

86900245 is a wasteful number, since it uses less digits than its factorization.

86900245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17380054.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 86900245 is about 9322.0300900609. The cubic root of 86900245 is about 442.9353414014.

The spelling of 86900245 in words is "eighty-six million, nine hundred thousand, two hundred forty-five".

Divisors: 1 5 17380049 86900245