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383080889 = 1812116469
BaseRepresentation
bin10110110101010…
…101100110111001
3222200211112012002
4112311111212321
51241032042024
6102002430345
712331063622
oct2665254671
9880745162
10383080889
1118726a384
12a83623b5
13614995a9
1438c3ca49
15239706ae
hex16d559b9

383080889 has 4 divisors (see below), whose sum is σ = 385197540. Its totient is φ = 380964240.

The previous prime is 383080883. The next prime is 383080909. The reversal of 383080889 is 988080383.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 988080383 = 1675916649.

It can be written as a sum of positive squares in 2 ways, for example, as 123387664 + 259693225 = 11108^2 + 16115^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-383080889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (383080883) 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 3 ways as a sum of consecutive naturals, for example, 1058054 + ... + 1058415.

It is an arithmetic number, because the mean of its divisors is an integer number (96299385).

Almost surely, 2383080889 is an apocalyptic number.

It is an amenable number.

383080889 is a deficient number, since it is larger than the sum of its proper divisors (2116651).

383080889 is a wasteful number, since it uses less digits than its factorization.

383080889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2116650.

The product of its (nonzero) digits is 331776, while the sum is 47.

The square root of 383080889 is about 19572.4522990861. The cubic root of 383080889 is about 726.2678656746.

The spelling of 383080889 in words is "three hundred eighty-three million, eighty thousand, eight hundred eighty-nine".

Divisors: 1 181 2116469 383080889