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313056918 = 23217392051
BaseRepresentation
bin10010101010001…
…101111010010110
3210211001221100200
4102222031322112
51120120310133
651021521330
710520640246
oct2252157226
9724057320
10313056918
11150792329
1288a13246
134cb1cba5
142d811b26
151c73c913
hex12a8de96

313056918 has 12 divisors (see below), whose sum is σ = 678290028. Its totient is φ = 104352300.

The previous prime is 313056911. The next prime is 313056929. The reversal of 313056918 is 819650313.

It is a happy number.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313056911) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8696008 + ... + 8696043.

It is an arithmetic number, because the mean of its divisors is an integer number (56524169).

Almost surely, 2313056918 is an apocalyptic number.

313056918 is an abundant number, since it is smaller than the sum of its proper divisors (365233110).

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

313056918 is a wasteful number, since it uses less digits than its factorization.

313056918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17392059 (or 17392056 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 313056918 is about 17693.4145376182. The cubic root of 313056918 is about 679.0072870539.

The spelling of 313056918 in words is "three hundred thirteen million, fifty-six thousand, nine hundred eighteen".

Divisors: 1 2 3 6 9 18 17392051 34784102 52176153 104352306 156528459 313056918