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315431314 = 21117538179
BaseRepresentation
bin10010110011010…
…001100110010010
3210222112120102021
4102303101212102
51121222300224
651144442054
710550056552
oct2263214622
9728476367
10315431314
11152064240
128977932a
1350471863
142dc6d162
151ca5b1e4
hex12cd1992

315431314 has 16 divisors (see below), whose sum is σ = 516517920. Its totient is φ = 143278560.

The previous prime is 315431239. The next prime is 315431317. The reversal of 315431314 is 413134513.

It is not an unprimeable number, because it can be changed into a prime (315431317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34477 + ... + 42655.

It is an arithmetic number, because the mean of its divisors is an integer number (32282370).

Almost surely, 2315431314 is an apocalyptic number.

315431314 is a deficient number, since it is larger than the sum of its proper divisors (201086606).

315431314 is a wasteful number, since it uses less digits than its factorization.

315431314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9945.

The product of its digits is 2160, while the sum is 25.

The square root of 315431314 is about 17760.3860881457. The cubic root of 315431314 is about 680.7196202470.

Adding to 315431314 its reverse (413134513), we get a palindrome (728565827).

It can be divided in two parts, 31 and 5431314, that added together give a palindrome (5431345).

The spelling of 315431314 in words is "three hundred fifteen million, four hundred thirty-one thousand, three hundred fourteen".

Divisors: 1 2 11 22 1753 3506 8179 16358 19283 38566 89969 179938 14337787 28675574 157715657 315431314