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244446889 = 1109220421
BaseRepresentation
bin11101001000111…
…11011010101001
3122000222012002111
432210133122221
51000034300024
640131202321
76025523101
oct1644373251
9560865074
10244446889
11115a90625
1269a463a1
133b849c3b
1424672201
15166d8a94
hexe91f6a9

244446889 has 4 divisors (see below), whose sum is σ = 244668420. Its totient is φ = 244225360.

The previous prime is 244446883. The next prime is 244446899. The reversal of 244446889 is 988644442.

It is a happy number.

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 8363664 + 236083225 = 2892^2 + 15365^2 .

It is a cyclic number.

It is not a de Polignac number, because 244446889 - 213 = 244438697 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (244446883) 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, 109102 + ... + 111319.

It is an arithmetic number, because the mean of its divisors is an integer number (61167105).

Almost surely, 2244446889 is an apocalyptic number.

It is an amenable number.

244446889 is a deficient number, since it is larger than the sum of its proper divisors (221531).

244446889 is a wasteful number, since it uses less digits than its factorization.

244446889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221530.

The product of its digits is 1769472, while the sum is 49.

The square root of 244446889 is about 15634.7973763653. The cubic root of 244446889 is about 625.2612360739.

The spelling of 244446889 in words is "two hundred forty-four million, four hundred forty-six thousand, eight hundred eighty-nine".

Divisors: 1 1109 220421 244446889