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379991304 = 233371123167
BaseRepresentation
bin10110101001100…
…011010100001000
3222111000120002000
4112221203110020
51234234210204
6101412311000
712262605240
oct2651432410
9874016060
10379991304
1118554a100
12a7312460
1360957234
1438676b20
1523560039
hex16a63508

379991304 has 384 divisors, whose sum is σ = 1389158400. Its totient is φ = 94089600.

The previous prime is 379991267. The next prime is 379991309. The reversal of 379991304 is 403199973.

It is a super-2 number, since 2×3799913042 = 288786782231240832, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 379991304.

It is not an unprimeable number, because it can be changed into a prime (379991309) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5671479 + ... + 5671545.

It is an arithmetic number, because the mean of its divisors is an integer number (3617600).

Almost surely, 2379991304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 379991304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (694579200).

379991304 is an abundant number, since it is smaller than the sum of its proper divisors (1009167096).

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

379991304 is a wasteful number, since it uses less digits than its factorization.

379991304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 121 counting only the distinct ones).

The product of its (nonzero) digits is 183708, while the sum is 45.

The square root of 379991304 is about 19493.3656406481. The cubic root of 379991304 is about 724.3101191715.

The spelling of 379991304 in words is "three hundred seventy-nine million, nine hundred ninety-one thousand, three hundred four".