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313112442 = 23151134537
BaseRepresentation
bin10010101010011…
…011011101111010
3210211011202112010
4102222123131322
51120124044232
651023030350
710521261156
oct2252333572
9724152463
10313112442
11150820015
1288a3b3b6
134cb3c246
142d828066
151c74e0cc
hex12a9b77a

313112442 has 16 divisors (see below), whose sum is σ = 626657472. Its totient is φ = 104298720.

The previous prime is 313112441. The next prime is 313112447. The reversal of 313112442 is 244211313.

It is not an unprimeable number, because it can be changed into a prime (313112441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8203 + ... + 26334.

It is an arithmetic number, because the mean of its divisors is an integer number (39166092).

Almost surely, 2313112442 is an apocalyptic number.

313112442 is an abundant number, since it is smaller than the sum of its proper divisors (313545030).

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

313112442 is a wasteful number, since it uses less digits than its factorization.

313112442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36053.

The product of its digits is 576, while the sum is 21.

The square root of 313112442 is about 17694.9835264122. The cubic root of 313112442 is about 679.0474277544.

Adding to 313112442 its reverse (244211313), we get a palindrome (557323755).

The spelling of 313112442 in words is "three hundred thirteen million, one hundred twelve thousand, four hundred forty-two".

Divisors: 1 2 3 6 1511 3022 4533 9066 34537 69074 103611 207222 52185407 104370814 156556221 313112442