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244233225 = 38521489
BaseRepresentation
bin11101000111010…
…11010000001001
3122000120100000000
432203223100021
51000010430400
640122433213
76023643135
oct1643532011
9560510000
10244233225
11115955045
1269962809
133b7a3902
14246183c5
1516695600
hexe8eb409

244233225 has 54 divisors (see below), whose sum is σ = 454555790. Its totient is φ = 130170240.

The previous prime is 244233211. The next prime is 244233229. The reversal of 244233225 is 522332442.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 2368521 + 241864704 = 1539^2 + 15552^2 .

It is not a de Polignac number, because 244233225 - 25 = 244233193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (244233229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 163281 + ... + 164769.

Almost surely, 2244233225 is an apocalyptic number.

244233225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

244233225 is a deficient number, since it is larger than the sum of its proper divisors (210322565).

244233225 is an frugal number, since it uses more digits than its factorization.

244233225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1523 (or 1497 counting only the distinct ones).

The product of its digits is 11520, while the sum is 27.

The square root of 244233225 is about 15627.9629190755. The cubic root of 244233225 is about 625.0790086785.

Adding to 244233225 its reverse (522332442), we get a palindrome (766565667).

The spelling of 244233225 in words is "two hundred forty-four million, two hundred thirty-three thousand, two hundred twenty-five".

Divisors: 1 3 5 9 15 25 27 45 75 81 135 225 243 405 675 729 1215 1489 2025 2187 3645 4467 6075 6561 7445 10935 13401 18225 22335 32805 37225 40203 54675 67005 111675 120609 164025 201015 335025 361827 603045 1005075 1085481 1809135 3015225 3256443 5427405 9045675 9769329 16282215 27137025 48846645 81411075 244233225