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244467889 = 19163193409
BaseRepresentation
bin11101001001001…
…00100010110001
3122001000020220021
432210210202301
51000040433024
640131443441
76025641241
oct1644444261
9561006807
10244467889
11115aa5386
1269a56581
133b856673
1424679b21
15166dede4
hexe9248b1

244467889 has 16 divisors (see below), whose sum is σ = 260891200. Its totient is φ = 228427776.

The previous prime is 244467863. The next prime is 244467901. The reversal of 244467889 is 988764442.

It is a 8-Lehmer number, since φ(244467889) divides (244467889-1)8.

It is a cyclic number.

It is not a de Polignac number, because 244467889 - 211 = 244465841 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 (244467859) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 597517 + ... + 597925.

It is an arithmetic number, because the mean of its divisors is an integer number (16305700).

Almost surely, 2244467889 is an apocalyptic number.

It is an amenable number.

244467889 is a deficient number, since it is larger than the sum of its proper divisors (16423311).

244467889 is a wasteful number, since it uses less digits than its factorization.

244467889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784.

The product of its digits is 3096576, while the sum is 52.

The square root of 244467889 is about 15635.4689408409. The cubic root of 244467889 is about 625.2791405903.

The spelling of 244467889 in words is "two hundred forty-four million, four hundred sixty-seven thousand, eight hundred eighty-nine".

Divisors: 1 19 163 193 409 3097 3667 7771 31459 66667 78937 597721 1266673 1499803 12866731 244467889