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313230012 = 223374391607
BaseRepresentation
bin10010101010111…
…000001010111100
3210211101201210120
4102222320022330
51120141330022
651025334540
710522261014
oct2252701274
9724351716
10313230012
111508a0387
1288a97450
134cb80904
142d858c44
151c773d5c
hex12ab82bc

313230012 has 48 divisors (see below), whose sum is σ = 752801280. Its totient is φ = 101293632.

The previous prime is 313230007. The next prime is 313230089. The reversal of 313230012 is 210032313.

It is a super-2 number, since 2×3132300122 = 196226080835040288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 313229973 and 313230000.

It is a congruent 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, 194113 + ... + 195719.

It is an arithmetic number, because the mean of its divisors is an integer number (15683360).

Almost surely, 2313230012 is an apocalyptic number.

It is an amenable number.

313230012 is an abundant number, since it is smaller than the sum of its proper divisors (439571268).

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

313230012 is a wasteful number, since it uses less digits than its factorization.

313230012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2090 (or 2088 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 313230012 is about 17698.3053426027. The cubic root of 313230012 is about 679.1324085312.

Adding to 313230012 its reverse (210032313), we get a palindrome (523262325).

The spelling of 313230012 in words is "three hundred thirteen million, two hundred thirty thousand, twelve".

Divisors: 1 2 3 4 6 12 37 74 111 148 222 439 444 878 1317 1607 1756 2634 3214 4821 5268 6428 9642 16243 19284 32486 48729 59459 64972 97458 118918 178377 194916 237836 356754 705473 713508 1410946 2116419 2821892 4232838 8465676 26102501 52205002 78307503 104410004 156615006 313230012