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315442112 = 2631158993
BaseRepresentation
bin10010110011010…
…100001111000000
3210222120010020012
4102303110033000
51121223121422
651145004052
710550133206
oct2263241700
9728503205
10315442112
11152071367
1289783628
135047674b
142dc73076
151ca5e4e2
hex12cd43c0

315442112 has 28 divisors (see below), whose sum is σ = 646151616. Its totient is φ = 152632320.

The previous prime is 315442087. The next prime is 315442117. The reversal of 315442112 is 211244513.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315442117) 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, 77513 + ... + 81480.

Almost surely, 2315442112 is an apocalyptic number.

315442112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

315442112 is an abundant number, since it is smaller than the sum of its proper divisors (330709504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

315442112 is a wasteful number, since it uses less digits than its factorization.

315442112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159036 (or 159026 counting only the distinct ones).

The product of its digits is 960, while the sum is 23.

The square root of 315442112 is about 17760.6900766834. The cubic root of 315442112 is about 680.7273877347.

Adding to 315442112 its reverse (211244513), we get a palindrome (526686625).

The spelling of 315442112 in words is "three hundred fifteen million, four hundred forty-two thousand, one hundred twelve".

Divisors: 1 2 4 8 16 31 32 62 64 124 248 496 992 1984 158993 317986 635972 1271944 2543888 4928783 5087776 9857566 10175552 19715132 39430264 78860528 157721056 315442112