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380731444 = 2295182861
BaseRepresentation
bin10110101100011…
…000000000110100
3222112102011100121
4112230120000310
51234431401234
6101440221324
712302110132
oct2654300064
9875364317
10380731444
11185a05195
12a760a844
1360b560a2
14387ca752
15236594b4
hex16b18034

380731444 has 6 divisors (see below), whose sum is σ = 666280034. Its totient is φ = 190365720.

The previous prime is 380731399. The next prime is 380731447. The reversal of 380731444 is 444137083.

It can be written as a sum of positive squares in only one way, i.e., 353816100 + 26915344 = 18810^2 + 5188^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380731447) by changing a digit.

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 as a sum of consecutive naturals, namely, 47591427 + ... + 47591434.

Almost surely, 2380731444 is an apocalyptic number.

It is an amenable number.

380731444 is a deficient number, since it is larger than the sum of its proper divisors (285548590).

380731444 is a wasteful number, since it uses less digits than its factorization.

380731444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95182865 (or 95182863 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 380731444 is about 19512.3408129317. The cubic root of 380731444 is about 724.7800801061.

The spelling of 380731444 in words is "three hundred eighty million, seven hundred thirty-one thousand, four hundred forty-four".

Divisors: 1 2 4 95182861 190365722 380731444