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244204431 = 381401477
BaseRepresentation
bin11101000111001…
…00001110001111
3122000111212111120
432203210032033
51000004020211
640122052023
76023463162
oct1643441617
9560455446
10244204431
11115935449
126994a013
133b793783
142460bad9
151668bd06
hexe8e438f

244204431 has 4 divisors (see below), whose sum is σ = 325605912. Its totient is φ = 162802952.

The previous prime is 244204427. The next prime is 244204463. The reversal of 244204431 is 134402442.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 244204431 - 22 = 244204427 is a prime.

It is a super-2 number, since 2×2442044312 = 119271608240067522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244204421) 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, 40700736 + ... + 40700741.

It is an arithmetic number, because the mean of its divisors is an integer number (81401478).

Almost surely, 2244204431 is an apocalyptic number.

244204431 is a deficient number, since it is larger than the sum of its proper divisors (81401481).

244204431 is an equidigital number, since it uses as much as digits as its factorization.

244204431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81401480.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 244204431 is about 15627.0416586122. The cubic root of 244204431 is about 625.0544430441.

Adding to 244204431 its reverse (134402442), we get a palindrome (378606873).

The spelling of 244204431 in words is "two hundred forty-four million, two hundred four thousand, four hundred thirty-one".

Divisors: 1 3 81401477 244204431