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513113990 = 2551311399
BaseRepresentation
bin11110100101010…
…111111110000110
31022202111220001212
4132211113332012
52022324121430
6122525451422
715500253104
oct3645277606
91282456055
10513113990
11243704154
12123a10b72
13823c715c
144c20ac74
15300a8b95
hex1e957f86

513113990 has 8 divisors (see below), whose sum is σ = 923605200. Its totient is φ = 205245592.

The previous prime is 513113977. The next prime is 513113999. The reversal of 513113990 is 99311315.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513113999) 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, 25655690 + ... + 25655709.

It is an arithmetic number, because the mean of its divisors is an integer number (115450650).

Almost surely, 2513113990 is an apocalyptic number.

513113990 is a deficient number, since it is larger than the sum of its proper divisors (410491210).

513113990 is a wasteful number, since it uses less digits than its factorization.

513113990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51311406.

The product of its (nonzero) digits is 3645, while the sum is 32.

The square root of 513113990 is about 22652.0195567636. The cubic root of 513113990 is about 800.5797828383.

The spelling of 513113990 in words is "five hundred thirteen million, one hundred thirteen thousand, nine hundred ninety".

Divisors: 1 2 5 10 51311399 102622798 256556995 513113990