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315413389 = 1911651379
BaseRepresentation
bin10010110011001…
…101001110001101
3210222111122211101
4102303031032031
51121221212024
651144223101
710546653364
oct2263151615
9728448741
10315413389
11152051825
128976aa91
1350466655
142dc667db
151ca55c44
hex12ccd38d

315413389 has 4 divisors (see below), whose sum is σ = 317064960. Its totient is φ = 313761820.

The previous prime is 315413387. The next prime is 315413407. The reversal of 315413389 is 983314513.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 315413389 - 21 = 315413387 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 (315413383) 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, 825499 + ... + 825880.

It is an arithmetic number, because the mean of its divisors is an integer number (79266240).

Almost surely, 2315413389 is an apocalyptic number.

It is an amenable number.

315413389 is a deficient number, since it is larger than the sum of its proper divisors (1651571).

315413389 is a wasteful number, since it uses less digits than its factorization.

315413389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1651570.

The product of its digits is 38880, while the sum is 37.

The square root of 315413389 is about 17759.8814466764. The cubic root of 315413389 is about 680.7067255958.

The spelling of 315413389 in words is "three hundred fifteen million, four hundred thirteen thousand, three hundred eighty-nine".

Divisors: 1 191 1651379 315413389