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244381439 = 1920876163
BaseRepresentation
bin11101001000011…
…11011011111111
3122000211212022102
432210033123333
51000030201224
640125535315
76025131221
oct1644173377
9560755272
10244381439
11115a46435
1269a1453b
133b826203
1424656411
15166c44ae
hexe90f6ff

244381439 has 8 divisors (see below), whose sum is σ = 257408640. Its totient is φ = 231370776.

The previous prime is 244381391. The next prime is 244381447. The reversal of 244381439 is 934183442.

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 244381439 - 28 = 244381183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244381139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36572 + ... + 42734.

It is an arithmetic number, because the mean of its divisors is an integer number (32176080).

Almost surely, 2244381439 is an apocalyptic number.

244381439 is a deficient number, since it is larger than the sum of its proper divisors (13027201).

244381439 is a wasteful number, since it uses less digits than its factorization.

244381439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8269.

The product of its digits is 82944, while the sum is 38.

The square root of 244381439 is about 15632.7041486750. The cubic root of 244381439 is about 625.2054270855.

The spelling of 244381439 in words is "two hundred forty-four million, three hundred eighty-one thousand, four hundred thirty-nine".

Divisors: 1 19 2087 6163 39653 117097 12862181 244381439