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380395916 = 22313067709
BaseRepresentation
bin10110101011000…
…110000110001100
3222111210010002122
4112223012012030
51234340132131
6101425112112
712266211665
oct2653060614
9874703078
10380395916
111857a609a
12a7488638
1360a69454
143874036c
15235ded7b
hex16ac618c

380395916 has 12 divisors (see below), whose sum is σ = 687167040. Its totient is φ = 184062480.

The previous prime is 380395877. The next prime is 380395921. The reversal of 380395916 is 619593083.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1533731 + ... + 1533978.

It is an arithmetic number, because the mean of its divisors is an integer number (57263920).

Almost surely, 2380395916 is an apocalyptic number.

It is an amenable number.

380395916 is a deficient number, since it is larger than the sum of its proper divisors (306771124).

380395916 is a wasteful number, since it uses less digits than its factorization.

380395916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3067744 (or 3067742 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 44.

The square root of 380395916 is about 19503.7410770344. The cubic root of 380395916 is about 724.5671080435.

The spelling of 380395916 in words is "three hundred eighty million, three hundred ninety-five thousand, nine hundred sixteen".

Divisors: 1 2 4 31 62 124 3067709 6135418 12270836 95098979 190197958 380395916