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380081771 = 1574335591
BaseRepresentation
bin10110101001111…
…001011001101011
3222111012011011122
4112221321121223
51234300104041
6101414245455
712263433056
oct2651713153
9874164148
10380081771
11185601073
12a735688b
1360989474
143869ba9d
152357bc4b
hex16a7966b

380081771 has 8 divisors (see below), whose sum is σ = 383454624. Its totient is φ = 376721280.

The previous prime is 380081701. The next prime is 380081777. The reversal of 380081771 is 177180083.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-380081771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (380081777) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 65186 + ... + 70776.

It is an arithmetic number, because the mean of its divisors is an integer number (47931828).

Almost surely, 2380081771 is an apocalyptic number.

380081771 is a deficient number, since it is larger than the sum of its proper divisors (3372853).

380081771 is a wasteful number, since it uses less digits than its factorization.

380081771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6181.

The product of its (nonzero) digits is 9408, while the sum is 35.

The square root of 380081771 is about 19495.6859586935. The cubic root of 380081771 is about 724.3675950167.

The spelling of 380081771 in words is "three hundred eighty million, eighty-one thousand, seven hundred seventy-one".

Divisors: 1 157 433 5591 67981 877787 2420903 380081771