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244511225 = 5272199601
BaseRepresentation
bin11101001001011…
…11000111111001
3122001002110100022
432210233013321
51000043324400
640132420225
76026211500
oct1644570771
9561073308
10244511225
111160249a2
1269a77675
133b8702ca
142468b837
15166ecb85
hexe92f1f9

244511225 has 18 divisors (see below), whose sum is σ = 352696734. Its totient is φ = 167664000.

The previous prime is 244511191. The next prime is 244511227. The reversal of 244511225 is 522115442.

It can be written as a sum of positive squares in 3 ways, for example, as 7997584 + 236513641 = 2828^2 + 15379^2 .

It is not a de Polignac number, because 244511225 - 224 = 227734009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 244511194 and 244511203.

It is not an unprimeable number, because it can be changed into a prime (244511227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 98576 + ... + 101025.

It is an arithmetic number, because the mean of its divisors is an integer number (19594263).

Almost surely, 2244511225 is an apocalyptic number.

244511225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

244511225 is a deficient number, since it is larger than the sum of its proper divisors (108185509).

244511225 is a wasteful number, since it uses less digits than its factorization.

244511225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199625 (or 199613 counting only the distinct ones).

The product of its digits is 3200, while the sum is 26.

The square root of 244511225 is about 15636.8547029126. The cubic root of 244511225 is about 625.3160854504.

Adding to 244511225 its reverse (522115442), we get a palindrome (766626667).

The spelling of 244511225 in words is "two hundred forty-four million, five hundred eleven thousand, two hundred twenty-five".

Divisors: 1 5 7 25 35 49 175 245 1225 199601 998005 1397207 4990025 6986035 9780449 34930175 48902245 244511225