Base | Representation |
---|---|
bin | 11101001000111… |
… | …10010000010011 |
3 | 122000221221120021 |
4 | 32210132100103 |
5 | 1000034122011 |
6 | 40131124311 |
7 | 6025503163 |
oct | 1644362023 |
9 | 560857507 |
10 | 244442131 |
11 | 115a87a9a |
12 | 69a43697 |
13 | 3b847a1b |
14 | 246705a3 |
15 | 166d7471 |
hex | e91e413 |
244442131 has 8 divisors (see below), whose sum is σ = 254160720. Its totient is φ = 234809568.
The previous prime is 244442071. The next prime is 244442141. The reversal of 244442131 is 131244442.
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 244442131 - 211 = 244440083 is a prime.
It is a super-2 number, since 2×2444421312 = 119503910815642322, 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 = 244442096 and 244442105.
It is not an unprimeable number, because it can be changed into a prime (244442141) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15681 + ... + 27106.
It is an arithmetic number, because the mean of its divisors is an integer number (31770090).
Almost surely, 2244442131 is an apocalyptic number.
244442131 is a deficient number, since it is larger than the sum of its proper divisors (9718589).
244442131 is a wasteful number, since it uses less digits than its factorization.
244442131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 43013.
The product of its digits is 3072, while the sum is 25.
The square root of 244442131 is about 15634.6452150345. The cubic root of 244442131 is about 625.2571792796.
Adding to 244442131 its reverse (131244442), we get a palindrome (375686573).
The spelling of 244442131 in words is "two hundred forty-four million, four hundred forty-two thousand, one hundred thirty-one".
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