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380757988 = 22137322269
BaseRepresentation
bin10110101100011…
…110011111100100
3222112110111202201
4112230132133210
51234433223423
6101440544244
712302250412
oct2654363744
9875414681
10380757988
11185a23126
12a7622084
1360b651b0
14387d62b2
15236622ad
hex16b1e7e4

380757988 has 12 divisors (see below), whose sum is σ = 717582460. Its totient is φ = 175734432.

The previous prime is 380757977. The next prime is 380757997. The reversal of 380757988 is 889757083.

It can be written as a sum of positive squares in 2 ways, for example, as 142611364 + 238146624 = 11942^2 + 15432^2 .

It is an unprimeable number.

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, 3661083 + ... + 3661186.

Almost surely, 2380757988 is an apocalyptic number.

It is an amenable number.

380757988 is a deficient number, since it is larger than the sum of its proper divisors (336824472).

380757988 is a wasteful number, since it uses less digits than its factorization.

380757988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7322286 (or 7322284 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 55.

The square root of 380757988 is about 19513.0209859980. The cubic root of 380757988 is about 724.7969232254.

The spelling of 380757988 in words is "three hundred eighty million, seven hundred fifty-seven thousand, nine hundred eighty-eight".

Divisors: 1 2 4 13 26 52 7322269 14644538 29289076 95189497 190378994 380757988