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380733361 = 389978749
BaseRepresentation
bin10110101100011…
…000011110110001
3222112102020222121
4112230120132301
51234431431421
6101440234241
712302115541
oct2654303661
9875366877
10380733361
11185a06678
12a760b981
1360b56c18
14387cb321
1523659d41
hex16b187b1

380733361 has 4 divisors (see below), whose sum is σ = 381712500. Its totient is φ = 379754224.

The previous prime is 380733359. The next prime is 380733389. The reversal of 380733361 is 163337083.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 202350625 + 178382736 = 14225^2 + 13356^2 .

It is a cyclic number.

It is not a de Polignac number, because 380733361 - 21 = 380733359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (380733341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 488986 + ... + 489763.

It is an arithmetic number, because the mean of its divisors is an integer number (95428125).

Almost surely, 2380733361 is an apocalyptic number.

It is an amenable number.

380733361 is a deficient number, since it is larger than the sum of its proper divisors (979139).

380733361 is an equidigital number, since it uses as much as digits as its factorization.

380733361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 979138.

The product of its (nonzero) digits is 27216, while the sum is 34.

The square root of 380733361 is about 19512.3899356281. The cubic root of 380733361 is about 724.7812965375.

The spelling of 380733361 in words is "three hundred eighty million, seven hundred thirty-three thousand, three hundred sixty-one".

Divisors: 1 389 978749 380733361