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244869665 = 5389125897
BaseRepresentation
bin11101001100001…
…10101000100001
3122001202200000212
432212012220201
51000141312130
640144223505
76032233505
oct1646065041
9561680025
10244869665
1111624a227
126a00ab95
133b9674c1
1424742305
151676de95
hexe986a21

244869665 has 8 divisors (see below), whose sum is σ = 294601320. Its totient is φ = 195390592.

The previous prime is 244869643. The next prime is 244869697. The reversal of 244869665 is 566968442.

It can be written as a sum of positive squares in 4 ways, for example, as 36096064 + 208773601 = 6008^2 + 14449^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 244869665 - 28 = 244869409 is a prime.

It is a super-2 number, since 2×2448696652 = 119922305674424450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61004 + ... + 64893.

It is an arithmetic number, because the mean of its divisors is an integer number (36825165).

Almost surely, 2244869665 is an apocalyptic number.

It is an amenable number.

244869665 is a deficient number, since it is larger than the sum of its proper divisors (49731655).

244869665 is a wasteful number, since it uses less digits than its factorization.

244869665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126291.

The product of its digits is 2488320, while the sum is 50.

The square root of 244869665 is about 15648.3118897854. The cubic root of 244869665 is about 625.6214959170.

The spelling of 244869665 in words is "two hundred forty-four million, eight hundred sixty-nine thousand, six hundred sixty-five".

Divisors: 1 5 389 1945 125897 629485 48973933 244869665