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318351340 = 22515917567
BaseRepresentation
bin10010111110011…
…010011111101100
3211012000220221101
4102332122133230
51122444220330
651331212444
710613641006
oct2276323754
9735026841
10318351340
1115377908a
128a747124
1350c54998
14303cd376
151ce364ca
hex12f9a7ec

318351340 has 12 divisors (see below), whose sum is σ = 668537856. Its totient is φ = 127340528.

The previous prime is 318351329. The next prime is 318351373. The reversal of 318351340 is 43153813.

318351340 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

318351340 is strictly pandigital in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 318351299 and 318351308.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7958764 + ... + 7958803.

It is an arithmetic number, because the mean of its divisors is an integer number (55711488).

Almost surely, 2318351340 is an apocalyptic number.

It is an amenable number.

318351340 is an abundant number, since it is smaller than the sum of its proper divisors (350186516).

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

318351340 is a wasteful number, since it uses less digits than its factorization.

318351340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15917576 (or 15917574 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 318351340 is about 17842.4028650852. The cubic root of 318351340 is about 682.8137018535.

The spelling of 318351340 in words is "three hundred eighteen million, three hundred fifty-one thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 15917567 31835134 63670268 79587835 159175670 318351340