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313144345 = 5277311727
BaseRepresentation
bin10010101010100…
…011010000011001
3210211020101021201
4102222203100121
51120131104340
651023434201
710521453163
oct2252432031
9724211251
10313144345
11150841a88
1288a55961
134cb50917
142d835933
151c75879a
hex12aa3419

313144345 has 16 divisors (see below), whose sum is σ = 378862848. Its totient is φ = 248466240.

The previous prime is 313144327. The next prime is 313144367. The reversal of 313144345 is 543441313.

It is not a de Polignac number, because 313144345 - 25 = 313144313 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 430372 + ... + 431098.

It is an arithmetic number, because the mean of its divisors is an integer number (23678928).

Almost surely, 2313144345 is an apocalyptic number.

It is an amenable number.

313144345 is a deficient number, since it is larger than the sum of its proper divisors (65718503).

313144345 is a wasteful number, since it uses less digits than its factorization.

313144345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320.

The product of its digits is 8640, while the sum is 28.

The square root of 313144345 is about 17695.8849736316. The cubic root of 313144345 is about 679.0704896659.

Adding to 313144345 its reverse (543441313), we get a palindrome (856585658).

The spelling of 313144345 in words is "three hundred thirteen million, one hundred forty-four thousand, three hundred forty-five".

Divisors: 1 5 277 311 727 1385 1555 3635 86147 201379 226097 430735 1006895 1130485 62628869 313144345