Base | Representation |
---|---|
bin | 111111101110001… |
… | …0011101100100101 |
3 | 12112000021010001010 |
4 | 1333130103230211 |
5 | 13334330032031 |
6 | 552055252433 |
7 | 103661531553 |
oct | 17734235445 |
9 | 5460233033 |
10 | 2138127141 |
11 | 9a7a0a627 |
12 | 4b807a119 |
13 | 280c7a0b7 |
14 | 163d72bd3 |
15 | c7a99246 |
hex | 7f713b25 |
2138127141 has 8 divisors (see below), whose sum is σ = 2917134880. Its totient is φ = 1392268752.
The previous prime is 2138127139. The next prime is 2138127151. The reversal of 2138127141 is 1417218312.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 2138127141 - 21 = 2138127139 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 2138127099 and 2138127108.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2138127151) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8287186 + ... + 8287443.
It is an arithmetic number, because the mean of its divisors is an integer number (364641860).
Almost surely, 22138127141 is an apocalyptic number.
It is an amenable number.
2138127141 is a deficient number, since it is larger than the sum of its proper divisors (779007739).
2138127141 is a wasteful number, since it uses less digits than its factorization.
2138127141 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 16574675.
The product of its digits is 2688, while the sum is 30.
The square root of 2138127141 is about 46239.8869051385. The cubic root of 2138127141 is about 1288.2827019608.
The spelling of 2138127141 in words is "two billion, one hundred thirty-eight million, one hundred twenty-seven thousand, one hundred forty-one".
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