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380645930 = 2575437799
BaseRepresentation
bin10110101100000…
…011001000101010
3222112020211001102
4112230003020222
51234421132210
6101434321402
712301302620
oct2654031052
9875224042
10380645930
11185956a15
12a7589262
1360b261a2
14387a7510
152363dea5
hex16b0322a

380645930 has 16 divisors (see below), whose sum is σ = 783043200. Its totient is φ = 130507152.

The previous prime is 380645911. The next prime is 380645959. The reversal of 380645930 is 39546083.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2718830 + ... + 2718969.

It is an arithmetic number, because the mean of its divisors is an integer number (48940200).

Almost surely, 2380645930 is an apocalyptic number.

380645930 is an abundant number, since it is smaller than the sum of its proper divisors (402397270).

380645930 is a wasteful number, since it uses less digits than its factorization.

380645930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5437813.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 380645930 is about 19510.1494099866. The cubic root of 380645930 is about 724.7258130844.

The spelling of 380645930 in words is "three hundred eighty million, six hundred forty-five thousand, nine hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 5437799 10875598 27188995 38064593 54377990 76129186 190322965 380645930