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244240625 = 5578157
BaseRepresentation
bin11101000111011…
…01000011110001
3122000120201011002
432203231003301
51000011200000
640122531345
76024003536
oct1643550361
9560521132
10244240625
1111595a662
1269966b55
133b7a70a5
142461ad8d
15166978d5
hexe8ed0f1

244240625 has 12 divisors (see below), whose sum is σ = 305285148. Its totient is φ = 195390000.

The previous prime is 244240609. The next prime is 244240627. The reversal of 244240625 is 526042442.

It can be written as a sum of positive squares in 6 ways, for example, as 242642929 + 1597696 = 15577^2 + 1264^2 .

It is not a de Polignac number, because 244240625 - 24 = 244240609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (244240627) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35954 + ... + 42203.

It is an arithmetic number, because the mean of its divisors is an integer number (25440429).

Almost surely, 2244240625 is an apocalyptic number.

244240625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

244240625 is a deficient number, since it is larger than the sum of its proper divisors (61044523).

244240625 is an frugal number, since it uses more digits than its factorization.

244240625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78182 (or 78162 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 29.

The square root of 244240625 is about 15628.1996723871. The cubic root of 244240625 is about 625.0853216851.

The spelling of 244240625 in words is "two hundred forty-four million, two hundred forty thousand, six hundred twenty-five".

Divisors: 1 5 25 125 625 3125 78157 390785 1953925 9769625 48848125 244240625