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318065740 = 22515903287
BaseRepresentation
bin10010111101010…
…100110001001100
3211011111102011121
4102331110301030
51122411100430
651321130324
710611341236
oct2275246114
9734442147
10318065740
111535a3553
128a6299a4
1350b849a5
1430357256
151cdcba7a
hex12f54c4c

318065740 has 12 divisors (see below), whose sum is σ = 667938096. Its totient is φ = 127226288.

The previous prime is 318065723. The next prime is 318065747. The reversal of 318065740 is 47560813.

It is a junction number, because it is equal to n+sod(n) for n = 318065696 and 318065705.

It is not an unprimeable number, because it can be changed into a prime (318065747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7951624 + ... + 7951663.

It is an arithmetic number, because the mean of its divisors is an integer number (55661508).

Almost surely, 2318065740 is an apocalyptic number.

It is an amenable number.

318065740 is an abundant number, since it is smaller than the sum of its proper divisors (349872356).

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

318065740 is a wasteful number, since it uses less digits than its factorization.

318065740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15903296 (or 15903294 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 318065740 is about 17834.3976629434. The cubic root of 318065740 is about 682.6094516911.

The spelling of 318065740 in words is "three hundred eighteen million, sixty-five thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 15903287 31806574 63613148 79516435 159032870 318065740