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520298061 = 3173432687
BaseRepresentation
bin11111000000110…
…001111001001101
31100021000212202120
4133000301321031
52031144014221
6123343443153
715615313653
oct3700617115
91307025676
10520298061
112477706a8
121262b64b9
1383a4109a
144d15add3
1530a275c6
hex1f031e4d

520298061 has 4 divisors (see below), whose sum is σ = 693730752. Its totient is φ = 346865372.

The previous prime is 520297963. The next prime is 520298063. The reversal of 520298061 is 160892025.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 520298061 - 27 = 520297933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520298063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86716341 + ... + 86716346.

It is an arithmetic number, because the mean of its divisors is an integer number (173432688).

Almost surely, 2520298061 is an apocalyptic number.

It is an amenable number.

520298061 is a deficient number, since it is larger than the sum of its proper divisors (173432691).

520298061 is a wasteful number, since it uses less digits than its factorization.

520298061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173432690.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 520298061 is about 22810.0429854922. The cubic root of 520298061 is about 804.2987661585.

The spelling of 520298061 in words is "five hundred twenty million, two hundred ninety-eight thousand, sixty-one".

Divisors: 1 3 173432687 520298061