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380534784 = 21537279
BaseRepresentation
bin10110101011101…
…000000000000000
3222112001011120220
4112223220000000
51234404103114
6101432103040
712300330600
oct2653500000
9875034526
10380534784
11185890463
12a7534a80
1360ab7716
1438778c00
152361b0a9
hex16ae8000

380534784 has 192 divisors, whose sum is σ = 1195358400. Its totient is φ = 107347968.

The previous prime is 380534767. The next prime is 380534797. The reversal of 380534784 is 487435083.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4816857 + ... + 4816935.

It is an arithmetic number, because the mean of its divisors is an integer number (6225825).

Almost surely, 2380534784 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 380534784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (597679200).

380534784 is an abundant number, since it is smaller than the sum of its proper divisors (814823616).

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

380534784 is an frugal number, since it uses more digits than its factorization.

380534784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126 (or 91 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 42.

The square root of 380534784 is about 19507.3007871412. The cubic root of 380534784 is about 724.6552678960.

The spelling of 380534784 in words is "three hundred eighty million, five hundred thirty-four thousand, seven hundred eighty-four".