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307320868 = 22691111187
BaseRepresentation
bin10010010100010…
…101100000100100
3210102021111222101
4102110111200210
51112133231433
650254541444
710421120131
oct2224254044
9712244871
10307320868
11148524798
1286b07884
134b89208a
142cb5b588
151bea807d
hex12515824

307320868 has 12 divisors (see below), whose sum is σ = 538594672. Its totient is φ = 153436680.

The previous prime is 307320841. The next prime is 307320899. The reversal of 307320868 is 868023703.

It is a super-2 number, since 2×3073208682 = 188892231816546848, which contains 22 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

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, 52830 + ... + 58357.

Almost surely, 2307320868 is an apocalyptic number.

It is an amenable number.

307320868 is a deficient number, since it is larger than the sum of its proper divisors (231273804).

307320868 is a wasteful number, since it uses less digits than its factorization.

307320868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111882 (or 111880 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 307320868 is about 17530.5695286833. The cubic root of 307320868 is about 674.8346137104.

The spelling of 307320868 in words is "three hundred seven million, three hundred twenty thousand, eight hundred sixty-eight".

Divisors: 1 2 4 691 1382 2764 111187 222374 444748 76830217 153660434 307320868