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513873497 is a prime number
BaseRepresentation
bin11110101000010…
…001011001011001
31022210221110220202
4132220101121121
52023022422442
6122554031545
715506565314
oct3650213131
91283843822
10513873497
11244082845
121241185b5
1382601a77
144c36797b
15301a8c32
hex1ea11659

513873497 has 2 divisors, whose sum is σ = 513873498. Its totient is φ = 513873496.

The previous prime is 513873463. The next prime is 513873509. The reversal of 513873497 is 794378315.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 313254601 + 200618896 = 17699^2 + 14164^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-513873497 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (513873457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256936748 + 256936749.

It is an arithmetic number, because the mean of its divisors is an integer number (256936749).

Almost surely, 2513873497 is an apocalyptic number.

It is an amenable number.

513873497 is a deficient number, since it is larger than the sum of its proper divisors (1).

513873497 is an equidigital number, since it uses as much as digits as its factorization.

513873497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 635040, while the sum is 47.

The square root of 513873497 is about 22668.7780217638. The cubic root of 513873497 is about 800.9745919186.

The spelling of 513873497 in words is "five hundred thirteen million, eight hundred seventy-three thousand, four hundred ninety-seven".