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315344013 = 3731439927
BaseRepresentation
bin10010110010111…
…100010010001101
3210222101010122220
4102302330102031
51121212002023
651142525553
710546244205
oct2262742215
9728333586
10315344013
11152004696
12897368b9
1350440bba
142dc49405
151ca403e3
hex12cbc48d

315344013 has 8 divisors (see below), whose sum is σ = 426218688. Its totient is φ = 207349344.

The previous prime is 315343981. The next prime is 315344027. The reversal of 315344013 is 310443513.

It is a happy number.

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

It is not a de Polignac number, because 315344013 - 25 = 315343981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315344213) 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, 719745 + ... + 720182.

It is an arithmetic number, because the mean of its divisors is an integer number (53277336).

Almost surely, 2315344013 is an apocalyptic number.

It is an amenable number.

315344013 is a deficient number, since it is larger than the sum of its proper divisors (110874675).

315344013 is a wasteful number, since it uses less digits than its factorization.

315344013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1440003.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 315344013 is about 17757.9281730724. The cubic root of 315344013 is about 680.6568141945.

Adding to 315344013 its reverse (310443513), we get a palindrome (625787526).

The spelling of 315344013 in words is "three hundred fifteen million, three hundred forty-four thousand, thirteen".

Divisors: 1 3 73 219 1439927 4319781 105114671 315344013