Base | Representation |
---|---|
bin | 111111110111111… |
… | …0000001001101110 |
3 | 12112100212002012121 |
4 | 1333233300021232 |
5 | 13342131140210 |
6 | 552400423154 |
7 | 104053051504 |
oct | 17757601156 |
9 | 5470762177 |
10 | 2143224430 |
11 | 9aa881266 |
12 | 4b9917aba |
13 | 282043249 |
14 | 1648dc674 |
15 | c82546da |
hex | 7fbf026e |
2143224430 has 32 divisors (see below), whose sum is σ = 3880001664. Its totient is φ = 852374016.
The previous prime is 2143224407. The next prime is 2143224431. The reversal of 2143224430 is 344223412.
It is a happy number.
It is a junction number, because it is equal to n+sod(n) for n = 2143224395 and 2143224404.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2143224431) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1614427 + ... + 1615753.
It is an arithmetic number, because the mean of its divisors is an integer number (121250052).
Almost surely, 22143224430 is an apocalyptic number.
2143224430 is a deficient number, since it is larger than the sum of its proper divisors (1736777234).
2143224430 is a wasteful number, since it uses less digits than its factorization.
2143224430 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2140.
The product of its (nonzero) digits is 4608, while the sum is 25.
The square root of 2143224430 is about 46294.9719732068. The cubic root of 2143224430 is about 1289.3056435888.
Adding to 2143224430 its reverse (344223412), we get a palindrome (2487447842).
The spelling of 2143224430 in words is "two billion, one hundred forty-three million, two hundred twenty-four thousand, four hundred thirty".
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