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380765444 = 22128973849
BaseRepresentation
bin10110101100100…
…000010100000100
3222112110212222212
4112230200110010
51234433443234
6101441042552
712302311223
oct2654402404
9875425885
10380765444
11185a28794
12a7626458
1360b686c7
14387d8cba
15236645ce
hex16b20504

380765444 has 12 divisors (see below), whose sum is σ = 666865500. Its totient is φ = 190232448.

The previous prime is 380765423. The next prime is 380765459. The reversal of 380765444 is 444567083.

It can be written as a sum of positive squares in 2 ways, for example, as 325441600 + 55323844 = 18040^2 + 7438^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31769 + ... + 42080.

It is an arithmetic number, because the mean of its divisors is an integer number (55572125).

Almost surely, 2380765444 is an apocalyptic number.

It is an amenable number.

380765444 is a deficient number, since it is larger than the sum of its proper divisors (286100056).

380765444 is a wasteful number, since it uses less digits than its factorization.

380765444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75142 (or 75140 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 41.

The square root of 380765444 is about 19513.2120369764. The cubic root of 380765444 is about 724.8016541837.

The spelling of 380765444 in words is "three hundred eighty million, seven hundred sixty-five thousand, four hundred forty-four".

Divisors: 1 2 4 1289 2578 5156 73849 147698 295396 95191361 190382722 380765444