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244330225 = 529773209
BaseRepresentation
bin11101001000000…
…10111011110001
3122000202021001121
432210002323301
51000022031400
640124502241
76024526006
oct1644027361
9560667047
10244330225
11115a10a07
12699aa981
133b808ac9
14246418ad
15166b421a
hexe902ef1

244330225 has 6 divisors (see below), whose sum is σ = 302969510. Its totient is φ = 195464160.

The previous prime is 244330223. The next prime is 244330237. The reversal of 244330225 is 522033442.

244330225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 73479184 + 170851041 = 8572^2 + 13071^2 .

It is not a de Polignac number, because 244330225 - 21 = 244330223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 9773209 = 244330225 / (2 + 4 + 4 + 3 + 3 + 0 + 2 + 2 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 244330225.

It is not an unprimeable number, because it can be changed into a prime (244330223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4886580 + ... + 4886629.

Almost surely, 2244330225 is an apocalyptic number.

244330225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

244330225 is a deficient number, since it is larger than the sum of its proper divisors (58639285).

244330225 is an equidigital number, since it uses as much as digits as its factorization.

244330225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9773219 (or 9773214 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 244330225 is about 15631.0660225079. The cubic root of 244330225 is about 625.1617501354.

Adding to 244330225 its reverse (522033442), we get a palindrome (766363667).

The spelling of 244330225 in words is "two hundred forty-four million, three hundred thirty thousand, two hundred twenty-five".

Divisors: 1 5 25 9773209 48866045 244330225