Base | Representation |
---|---|
bin | 111111110111101… |
… | …1001001100110111 |
3 | 12112100200022020212 |
4 | 1333233121030313 |
5 | 13342120133143 |
6 | 552354420035 |
7 | 104052210440 |
oct | 17757311467 |
9 | 5470608225 |
10 | 2143130423 |
11 | 9aa817675 |
12 | 4b989161b |
13 | 28200c515 |
14 | 1648b62c7 |
15 | c8236918 |
hex | 7fbd9337 |
2143130423 has 24 divisors (see below), whose sum is σ = 2512929888. Its totient is φ = 1790097408.
The previous prime is 2143130389. The next prime is 2143130489. The reversal of 2143130423 is 3240313412.
It is not a de Polignac number, because 2143130423 - 26 = 2143130359 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2143132423) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6071015 + ... + 6071367.
It is an arithmetic number, because the mean of its divisors is an integer number (104705412).
Almost surely, 22143130423 is an apocalyptic number.
2143130423 is a deficient number, since it is larger than the sum of its proper divisors (369799465).
2143130423 is an equidigital number, since it uses as much as digits as its factorization.
2143130423 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 651 (or 542 counting only the distinct ones).
The product of its (nonzero) digits is 1728, while the sum is 23.
The square root of 2143130423 is about 46293.9566574299. The cubic root of 2143130423 is about 1289.2867926267.
Adding to 2143130423 its reverse (3240313412), we get a palindrome (5383443835).
The spelling of 2143130423 in words is "two billion, one hundred forty-three million, one hundred thirty thousand, four hundred twenty-three".
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