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380368784 = 24100923561
BaseRepresentation
bin10110101010111…
…111011110010000
3222111201201212202
4112222333132100
51234333300114
6101424342332
712266036615
oct2652773620
9874651782
10380368784
11185787774
12a74749a8
1360a59cb3
143873450c
15235d6cde
hex16abf790

380368784 has 20 divisors (see below), whose sum is σ = 737726220. Its totient is φ = 189987840.

The previous prime is 380368783. The next prime is 380368787. The reversal of 380368784 is 487863083.

It can be written as a sum of positive squares in 2 ways, for example, as 97456384 + 282912400 = 9872^2 + 16820^2 .

It is not an unprimeable number, because it can be changed into a prime (380368783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4364 + ... + 27924.

It is an arithmetic number, because the mean of its divisors is an integer number (36886311).

Almost surely, 2380368784 is an apocalyptic number.

It is an amenable number.

380368784 is a deficient number, since it is larger than the sum of its proper divisors (357357436).

380368784 is a wasteful number, since it uses less digits than its factorization.

380368784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24578 (or 24572 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 47.

The square root of 380368784 is about 19503.0455057665. The cubic root of 380368784 is about 724.5498808850.

The spelling of 380368784 in words is "three hundred eighty million, three hundred sixty-eight thousand, seven hundred eighty-four".

Divisors: 1 2 4 8 16 1009 2018 4036 8072 16144 23561 47122 94244 188488 376976 23773049 47546098 95092196 190184392 380368784