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244649249 = 1329648937
BaseRepresentation
bin11101001010100…
…00110100100001
3122001100110200022
432211100310201
51000112233444
640135403225
76030325055
oct1645206441
9561313608
10244649249
11116109669
1269b23515
133b8bb090
14246c5c65
15167289ee
hexe950d21

244649249 has 8 divisors (see below), whose sum is σ = 272553960. Its totient is φ = 218042496.

The previous prime is 244649239. The next prime is 244649287. The reversal of 244649249 is 942946442.

It can be written as a sum of positive squares in 4 ways, for example, as 9579025 + 235070224 = 3095^2 + 15332^2 .

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 244649249 - 24 = 244649233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (244649239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 324092 + ... + 324845.

It is an arithmetic number, because the mean of its divisors is an integer number (34069245).

Almost surely, 2244649249 is an apocalyptic number.

244649249 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

244649249 is a deficient number, since it is larger than the sum of its proper divisors (27904711).

244649249 is a wasteful number, since it uses less digits than its factorization.

244649249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648979.

The product of its digits is 497664, while the sum is 44.

The square root of 244649249 is about 15641.2674997904. The cubic root of 244649249 is about 625.4337247562.

The spelling of 244649249 in words is "two hundred forty-four million, six hundred forty-nine thousand, two hundred forty-nine".

Divisors: 1 13 29 377 648937 8436181 18819173 244649249