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313391234 = 21328311171
BaseRepresentation
bin10010101011011…
…111100010000010
3210211200220221202
4102223133202002
51120212004414
651033021202
710523532032
oct2253374202
9724626852
10313391234
111509a0522
1288b54802
134cc09100
142d89b8c2
151c7a69de
hex12adf882

313391234 has 24 divisors (see below), whose sum is σ = 515207952. Its totient is φ = 142886640.

The previous prime is 313391233. The next prime is 313391251. The reversal of 313391234 is 432193313.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 313391197 and 313391206.

It is not an unprimeable number, because it can be changed into a prime (313391233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22469 + ... + 33639.

It is an arithmetic number, because the mean of its divisors is an integer number (21466998).

Almost surely, 2313391234 is an apocalyptic number.

313391234 is a deficient number, since it is larger than the sum of its proper divisors (201816718).

313391234 is a wasteful number, since it uses less digits than its factorization.

313391234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11282 (or 11269 counting only the distinct ones).

The product of its digits is 5832, while the sum is 29.

The square root of 313391234 is about 17702.8594865349. The cubic root of 313391234 is about 679.2489068456.

The spelling of 313391234 in words is "three hundred thirteen million, three hundred ninety-one thousand, two hundred thirty-four".

Divisors: 1 2 13 26 83 166 169 338 1079 2158 11171 14027 22342 28054 145223 290446 927193 1854386 1887899 3775798 12053509 24107018 156695617 313391234