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3118515013 is a prime number
BaseRepresentation
bin1011100111100000…
…1100001101000101
322001100000222101001
42321320030031011
522341314440023
61233240333301
7140164640335
oct27170141505
98040028331
103118515013
111360358539
12730474231
133a910b573
142182570c5
15133ba46ad
hexb9e0c345

3118515013 has 2 divisors, whose sum is σ = 3118515014. Its totient is φ = 3118515012.

The previous prime is 3118514963. The next prime is 3118515031. The reversal of 3118515013 is 3105158113.

Together with next prime (3118515031) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1693980964 + 1424534049 = 41158^2 + 37743^2 .

It is a cyclic number.

It is not a de Polignac number, because 3118515013 - 217 = 3118383941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3118515613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1559257506 + 1559257507.

It is an arithmetic number, because the mean of its divisors is an integer number (1559257507).

Almost surely, 23118515013 is an apocalyptic number.

It is an amenable number.

3118515013 is a deficient number, since it is larger than the sum of its proper divisors (1).

3118515013 is an equidigital number, since it uses as much as digits as its factorization.

3118515013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 28.

The square root of 3118515013 is about 55843.6658270211. The cubic root of 3118515013 is about 1460.9968504966.

The spelling of 3118515013 in words is "three billion, one hundred eighteen million, five hundred fifteen thousand, thirteen".