Base | Representation |
---|---|
bin | 111111110111111… |
… | …0110011011011101 |
3 | 12112100220101110212 |
4 | 1333233312123131 |
5 | 13342133001031 |
6 | 552401142205 |
7 | 104053216454 |
oct | 17757663335 |
9 | 5470811425 |
10 | 2143250141 |
11 | 9aa89960a |
12 | 4b992a965 |
13 | 282051b66 |
14 | 164907b9b |
15 | c825c12b |
hex | 7fbf66dd |
2143250141 has 12 divisors (see below), whose sum is σ = 2274556284. Its totient is φ = 2019168000.
The previous prime is 2143250119. The next prime is 2143250177. The reversal of 2143250141 is 1410523412.
It can be written as a sum of positive squares in 2 ways, for example, as 134328100 + 2008922041 = 11590^2 + 44821^2 .
It is not a de Polignac number, because 2143250141 - 26 = 2143250077 is a prime.
It is an alternating number because its digits alternate between even and odd.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2143250041) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48941 + ... + 81741.
It is an arithmetic number, because the mean of its divisors is an integer number (189546357).
Almost surely, 22143250141 is an apocalyptic number.
It is an amenable number.
2143250141 is a deficient number, since it is larger than the sum of its proper divisors (131306143).
2143250141 is a wasteful number, since it uses less digits than its factorization.
2143250141 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 33020 (or 33001 counting only the distinct ones).
The product of its (nonzero) digits is 960, while the sum is 23.
The square root of 2143250141 is about 46295.2496591173. The cubic root of 2143250141 is about 1289.3107992481.
Adding to 2143250141 its reverse (1410523412), we get a palindrome (3553773553).
The spelling of 2143250141 in words is "two billion, one hundred forty-three million, two hundred fifty thousand, one hundred forty-one".
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