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516171013 is a prime number
BaseRepresentation
bin11110110001000…
…010010100000101
31022222021012111221
4132301002110011
52024114433023
6123115200341
715535244521
oct3661022405
91288235457
10516171013
11245401a16
12124a460b1
1382c27747
144c7a4d81
15304ae85d
hex1ec42505

516171013 has 2 divisors, whose sum is σ = 516171014. Its totient is φ = 516171012.

The previous prime is 516170951. The next prime is 516171031. The reversal of 516171013 is 310171615.

Together with next prime (516171031) 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., 282172804 + 233998209 = 16798^2 + 15297^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-516171013 is a prime.

It is a super-2 number, since 2×5161710132 = 532865029322892338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (516141013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258085506 + 258085507.

It is an arithmetic number, because the mean of its divisors is an integer number (258085507).

Almost surely, 2516171013 is an apocalyptic number.

It is an amenable number.

516171013 is a deficient number, since it is larger than the sum of its proper divisors (1).

516171013 is an equidigital number, since it uses as much as digits as its factorization.

516171013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 630, while the sum is 25.

The square root of 516171013 is about 22719.3972851394. The cubic root of 516171013 is about 802.1665299924.

The spelling of 516171013 in words is "five hundred sixteen million, one hundred seventy-one thousand, thirteen".