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315442252 = 22274928687
BaseRepresentation
bin10010110011010…
…100010001001100
3210222120010102101
4102303110101030
51121223123002
651145004444
710550133466
oct2263242114
9728503371
10315442252
11152071484
1289783724
1350476828
142dc73136
151ca5e587
hex12cd444c

315442252 has 12 divisors (see below), whose sum is σ = 552244000. Its totient is φ = 157658256.

The previous prime is 315442243. The next prime is 315442277. The reversal of 315442252 is 252244513.

315442252 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 315442252.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3348 + ... + 25339.

Almost surely, 2315442252 is an apocalyptic number.

It is an amenable number.

315442252 is a deficient number, since it is larger than the sum of its proper divisors (236801748).

315442252 is a wasteful number, since it uses less digits than its factorization.

315442252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31440 (or 31438 counting only the distinct ones).

The product of its digits is 9600, while the sum is 28.

The square root of 315442252 is about 17760.6940179713. The cubic root of 315442252 is about 680.7274884419.

Adding to 315442252 its reverse (252244513), we get a palindrome (567686765).

The spelling of 315442252 in words is "three hundred fifteen million, four hundred forty-two thousand, two hundred fifty-two".

Divisors: 1 2 4 2749 5498 10996 28687 57374 114748 78860563 157721126 315442252