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315314212 = 22358122013
BaseRepresentation
bin10010110010110…
…101000000100100
3210222022121210011
4102302311000210
51121210023322
651142140004
710546061263
oct2262650044
9728277704
10315314212
11151a94264
1289721604
1350430475
142dc3c5da
151ca36677
hex12cb5024

315314212 has 12 divisors (see below), whose sum is σ = 551979036. Its totient is φ = 157605920.

The previous prime is 315314189. The next prime is 315314213. The reversal of 315314212 is 212413513.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 252682816 + 62631396 = 15896^2 + 7914^2 .

It is not an unprimeable number, because it can be changed into a prime (315314213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3318 + ... + 25330.

It is an arithmetic number, because the mean of its divisors is an integer number (45998253).

Almost surely, 2315314212 is an apocalyptic number.

It is an amenable number.

315314212 is a deficient number, since it is larger than the sum of its proper divisors (236664824).

315314212 is a wasteful number, since it uses less digits than its factorization.

315314212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25598 (or 25596 counting only the distinct ones).

The product of its digits is 720, while the sum is 22.

The square root of 315314212 is about 17757.0890632446. The cubic root of 315314212 is about 680.6353721166.

Adding to 315314212 its reverse (212413513), we get a palindrome (527727725).

The spelling of 315314212 in words is "three hundred fifteen million, three hundred fourteen thousand, two hundred twelve".

Divisors: 1 2 4 3581 7162 14324 22013 44026 88052 78828553 157657106 315314212