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313312120120 = 23527751282253
BaseRepresentation
bin1001000111100101101…
…10111000110100111000
31002221201021000210112001
410203302312320310320
520113130400320440
6355533354030344
731431111036226
oct4436266706470
91087637023461
10313312120120
1111096958416a
125087b7183b4
1323711a82c6c
1411243117b16
15823b215b9a
hex48f2db8d38

313312120120 has 32 divisors (see below), whose sum is σ = 704980170720. Its totient is φ = 125319888000.

The previous prime is 313312120117. The next prime is 313312120141. The reversal of 313312120120 is 21021213313.

It is a super-2 number, since 2×3133121201202 (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 968914 + ... + 1251166.

It is an arithmetic number, because the mean of its divisors is an integer number (22030630335).

Almost surely, 2313312120120 is an apocalyptic number.

It is an amenable number.

313312120120 is an abundant number, since it is smaller than the sum of its proper divisors (391668050600).

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

313312120120 is a wasteful number, since it uses less digits than its factorization.

313312120120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310015 (or 310011 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 313312120120 its reverse (21021213313), we get a palindrome (334333333433).

The spelling of 313312120120 in words is "three hundred thirteen billion, three hundred twelve million, one hundred twenty thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 27751 55502 111004 138755 222008 277510 282253 555020 564506 1110040 1129012 1411265 2258024 2822530 5645060 11290120 7832803003 15665606006 31331212012 39164015015 62662424024 78328030030 156656060060 313312120120