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12244281 = 374114221
BaseRepresentation
bin101110101101…
…010100111001
3212001001222220
4232231110321
511113304111
61114234253
7206034420
oct56552471
925031886
1012244281
116a03345
124125989
1326c924a
1418aa2b7
15111ce06
hexbad539

12244281 has 16 divisors (see below), whose sum is σ = 19114368. Its totient is φ = 6825600.

The previous prime is 12244259. The next prime is 12244307. The reversal of 12244281 is 18244221.

It is not a de Polignac number, because 12244281 - 25 = 12244249 is a prime.

It is a super-2 number, since 2×122442812 = 299844834413922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12244201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6250 + ... + 7971.

It is an arithmetic number, because the mean of its divisors is an integer number (1194648).

Almost surely, 212244281 is an apocalyptic number.

It is an amenable number.

12244281 is a deficient number, since it is larger than the sum of its proper divisors (6870087).

12244281 is a wasteful number, since it uses less digits than its factorization.

12244281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14272.

The product of its digits is 1024, while the sum is 24.

The square root of 12244281 is about 3499.1829046222. The cubic root of 12244281 is about 230.4859354336.

The spelling of 12244281 in words is "twelve million, two hundred forty-four thousand, two hundred eighty-one".

Divisors: 1 3 7 21 41 123 287 861 14221 42663 99547 298641 583061 1749183 4081427 12244281