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313120412 = 22113103571
BaseRepresentation
bin10010101010011…
…101011010011100
3210211012011110022
4102222131122130
51120124323122
651023131312
710521323333
oct2252353234
9724164408
10313120412
11150826000
1288a43b38
134cb42a67
142d82ad1a
151c751642
hex12a9d69c

313120412 has 48 divisors (see below), whose sum is σ = 609633024. Its totient is φ = 140698800.

The previous prime is 313120397. The next prime is 313120417. The reversal of 313120412 is 214021313.

It is a super-2 number, since 2×3131204122 = 196088784822099488, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313120417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 548087 + ... + 548657.

It is an arithmetic number, because the mean of its divisors is an integer number (12700688).

Almost surely, 2313120412 is an apocalyptic number.

It is an amenable number.

313120412 is a deficient number, since it is larger than the sum of its proper divisors (296512612).

313120412 is a wasteful number, since it uses less digits than its factorization.

313120412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711 (or 687 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 313120412 is about 17695.2087300489. The cubic root of 313120412 is about 679.0531892225.

Adding to 313120412 its reverse (214021313), we get a palindrome (527141725).

Subtracting from 313120412 its reverse (214021313), we obtain a palindrome (99099099).

The spelling of 313120412 in words is "three hundred thirteen million, one hundred twenty thousand, four hundred twelve".

Divisors: 1 2 4 11 22 44 103 121 206 242 412 484 571 1133 1142 1331 2266 2284 2662 4532 5324 6281 12463 12562 24926 25124 49852 58813 69091 117626 137093 138182 235252 274186 276364 548372 646943 760001 1293886 1520002 2587772 3040004 7116373 14232746 28465492 78280103 156560206 313120412