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244130281 is a prime number
BaseRepresentation
bin11101000110100…
…10000111101001
3122000101002210021
432203102013221
5444444132111
640120320441
76023034043
oct1643220751
9560332707
10244130281
1111589476a
1269913121
133b768ab5
14245cca93
1516674d71
hexe8d21e9

244130281 has 2 divisors, whose sum is σ = 244130282. Its totient is φ = 244130280.

The previous prime is 244130273. The next prime is 244130311. The reversal of 244130281 is 182031442.

244130281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 214329600 + 29800681 = 14640^2 + 5459^2 .

It is a cyclic number.

It is not a de Polignac number, because 244130281 - 23 = 244130273 is a prime.

It is a super-2 number, since 2×2441302812 = 119199188202277922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (244131281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122065140 + 122065141.

It is an arithmetic number, because the mean of its divisors is an integer number (122065141).

Almost surely, 2244130281 is an apocalyptic number.

It is an amenable number.

244130281 is a deficient number, since it is larger than the sum of its proper divisors (1).

244130281 is an equidigital number, since it uses as much as digits as its factorization.

244130281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 244130281 is about 15624.6689884938. The cubic root of 244130281 is about 624.9911729953.

The spelling of 244130281 in words is "two hundred forty-four million, one hundred thirty thousand, two hundred eighty-one".