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380248644 = 223208115227
BaseRepresentation
bin10110101010100…
…010001001000100
3222111111122002010
4112222202021010
51234320424034
6101422014220
712265026426
oct2652421104
9874448063
10380248644
11185705486
12a7417370
1360a173c9
1438702816
15235b13e9
hex16aa2244

380248644 has 24 divisors (see below), whose sum is σ = 887731488. Its totient is φ = 126680320.

The previous prime is 380248619. The next prime is 380248663. The reversal of 380248644 is 446842083.

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, 17359 + ... + 32585.

It is an arithmetic number, because the mean of its divisors is an integer number (36988812).

Almost surely, 2380248644 is an apocalyptic number.

It is an amenable number.

380248644 is an abundant number, since it is smaller than the sum of its proper divisors (507482844).

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

380248644 is a wasteful number, since it uses less digits than its factorization.

380248644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17315 (or 17313 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 39.

The square root of 380248644 is about 19499.9652307382. The cubic root of 380248644 is about 724.4735894956.

The spelling of 380248644 in words is "three hundred eighty million, two hundred forty-eight thousand, six hundred forty-four".

Divisors: 1 2 3 4 6 12 2081 4162 6243 8324 12486 15227 24972 30454 45681 60908 91362 182724 31687387 63374774 95062161 126749548 190124322 380248644