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313504013 = 438981919
BaseRepresentation
bin10010101011111…
…011000100001101
3210211220122122202
4102223323010031
51120224112023
651035251245
710524511604
oct2253730415
9724818582
10313504013
11150a68229
1288ba9b25
134cc48544
142d8caa3b
151c7ca128
hex12afb10d

313504013 has 8 divisors (see below), whose sum is σ = 324403200. Its totient is φ = 302768928.

The previous prime is 313503929. The next prime is 313504019. The reversal of 313504013 is 310405313.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 313504013 - 224 = 296726797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313504019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37133 + ... + 44786.

It is an arithmetic number, because the mean of its divisors is an integer number (40550400).

Almost surely, 2313504013 is an apocalyptic number.

It is an amenable number.

313504013 is a deficient number, since it is larger than the sum of its proper divisors (10899187).

313504013 is an equidigital number, since it uses as much as digits as its factorization.

313504013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82051.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 313504013 is about 17706.0445328707. The cubic root of 313504013 is about 679.3303767112.

Adding to 313504013 its reverse (310405313), we get a palindrome (623909326).

The spelling of 313504013 in words is "three hundred thirteen million, five hundred four thousand, thirteen".

Divisors: 1 43 89 3827 81919 3522517 7290791 313504013