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380391744 = 2634394513
BaseRepresentation
bin10110101011000…
…101000101000000
3222111202220101010
4112223011011000
51234340013434
6101425040520
712266163555
oct2653050500
9874686333
10380391744
111857a2a47
12a7486140
1360a67595
143873ca2c
15235dd9e9
hex16ac5140

380391744 has 56 divisors (see below), whose sum is σ = 1008969280. Its totient is φ = 126480384.

The previous prime is 380391721. The next prime is 380391751. The reversal of 380391744 is 447193083.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82032 + ... + 86544.

Almost surely, 2380391744 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 380391744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (504484640).

380391744 is an abundant number, since it is smaller than the sum of its proper divisors (628577536).

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

380391744 is a wasteful number, since it uses less digits than its factorization.

380391744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4967 (or 4957 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 380391744 is about 19503.6341229013. The cubic root of 380391744 is about 724.5644591322.

The spelling of 380391744 in words is "three hundred eighty million, three hundred ninety-one thousand, seven hundred forty-four".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 192 439 878 1317 1756 2634 3512 4513 5268 7024 9026 10536 13539 14048 18052 21072 27078 28096 36104 42144 54156 72208 84288 108312 144416 216624 288832 433248 866496 1981207 3962414 5943621 7924828 11887242 15849656 23774484 31699312 47548968 63398624 95097936 126797248 190195872 380391744