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520201115 = 57121312253
BaseRepresentation
bin11111000000011…
…010001110011011
31100020211221202222
4133000122032123
52031132413430
6123341414255
715614431220
oct3700321633
91306757688
10520201115
11247704885
1212626a38b
1383a08c15
144d133947
1530a089e5
hex1f01a39b

520201115 has 16 divisors (see below), whose sum is σ = 714065088. Its totient is φ = 356386176.

The previous prime is 520201109. The next prime is 520201181. The reversal of 520201115 is 511102025.

It is a cyclic number.

It is not a de Polignac number, because 520201115 - 210 = 520200091 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 520201093 and 520201102.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36329 + ... + 48581.

It is an arithmetic number, because the mean of its divisors is an integer number (44629068).

Almost surely, 2520201115 is an apocalyptic number.

520201115 is a deficient number, since it is larger than the sum of its proper divisors (193863973).

520201115 is a wasteful number, since it uses less digits than its factorization.

520201115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13478.

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 520201115 is about 22807.9178137769. The cubic root of 520201115 is about 804.2488086454.

It can be divided in two parts, 52020 and 1115, that added together give a palindrome (53135).

The spelling of 520201115 in words is "five hundred twenty million, two hundred one thousand, one hundred fifteen".

Divisors: 1 5 7 35 1213 6065 8491 12253 42455 61265 85771 428855 14862889 74314445 104040223 520201115