Search a number
-
+
244304231 = 19710191217
BaseRepresentation
bin11101000111111…
…00100101100111
3122000200221101212
432203330211213
51000020213411
640124142035
76024360143
oct1643744547
9560627355
10244304231
111159a3426
126999791b
133b7ca022
1424636223
15166ab68b
hexe8fc967

244304231 has 8 divisors (see below), whose sum is σ = 245987280. Its totient is φ = 242626048.

The previous prime is 244304227. The next prime is 244304257. The reversal of 244304231 is 132403442.

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 244304231 - 22 = 244304227 is a prime.

It is a super-2 number, since 2×2443042312 = 119369114569002722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 244304197 and 244304206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244304131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200135 + ... + 201351.

It is an arithmetic number, because the mean of its divisors is an integer number (30748410).

Almost surely, 2244304231 is an apocalyptic number.

244304231 is a deficient number, since it is larger than the sum of its proper divisors (1683049).

244304231 is a wasteful number, since it uses less digits than its factorization.

244304231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2433.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 244304231 is about 15630.2345151952. The cubic root of 244304231 is about 625.1395792792.

Adding to 244304231 its reverse (132403442), we get a palindrome (376707673).

The spelling of 244304231 in words is "two hundred forty-four million, three hundred four thousand, two hundred thirty-one".

Divisors: 1 197 1019 1217 200743 239749 1240123 244304231