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244189839 = 381396613
BaseRepresentation
bin11101000111000…
…00101010001111
3122000111010111010
432203200222033
51000003033324
640121500303
76023402505
oct1643405217
9560433433
10244189839
11115925493
1269941693
133b789c3a
1424606675
1516687829
hexe8e0a8f

244189839 has 4 divisors (see below), whose sum is σ = 325586456. Its totient is φ = 162793224.

The previous prime is 244189817. The next prime is 244189859. The reversal of 244189839 is 938981442.

244189839 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 244189839 - 219 = 243665551 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 (244189859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40698304 + ... + 40698309.

It is an arithmetic number, because the mean of its divisors is an integer number (81396614).

Almost surely, 2244189839 is an apocalyptic number.

244189839 is a deficient number, since it is larger than the sum of its proper divisors (81396617).

244189839 is an equidigital number, since it uses as much as digits as its factorization.

244189839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81396616.

The product of its digits is 497664, while the sum is 48.

The square root of 244189839 is about 15626.5747686433. The cubic root of 244189839 is about 625.0419931251.

The spelling of 244189839 in words is "two hundred forty-four million, one hundred eighty-nine thousand, eight hundred thirty-nine".

Divisors: 1 3 81396613 244189839