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313130234 = 2239916869
BaseRepresentation
bin10010101010011…
…111110011111010
3210211012122221002
4102222133303322
51120130131414
651023245002
710521364064
oct2252376372
9724178832
10313130234
1115083241a
1288a49762
134cb47381
142d830734
151c7544de
hex12a9fcfa

313130234 has 16 divisors (see below), whose sum is σ = 490682880. Its totient is φ = 149585040.

The previous prime is 313130231. The next prime is 313130239. The reversal of 313130234 is 432031313.

It is not an unprimeable number, because it can be changed into a prime (313130231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42152 + ... + 49020.

It is an arithmetic number, because the mean of its divisors is an integer number (30667680).

Almost surely, 2313130234 is an apocalyptic number.

313130234 is a deficient number, since it is larger than the sum of its proper divisors (177552646).

313130234 is a wasteful number, since it uses less digits than its factorization.

313130234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7885.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 313130234 is about 17695.4862606259. The cubic root of 313130234 is about 679.0602893565.

Adding to 313130234 its reverse (432031313), we get a palindrome (745161547).

The spelling of 313130234 in words is "three hundred thirteen million, one hundred thirty thousand, two hundred thirty-four".

Divisors: 1 2 23 46 991 1982 6869 13738 22793 45586 157987 315974 6807179 13614358 156565117 313130234