Base | Representation |
---|---|
bin | 111111100001001… |
… | …1010101101001001 |
3 | 12111112111021222102 |
4 | 1333002122231021 |
5 | 13331110340410 |
6 | 551254003145 |
7 | 103550043356 |
oct | 17702325511 |
9 | 5445437872 |
10 | 2131340105 |
11 | 9a40a4404 |
12 | 4b59464b5 |
13 | 27c741abb |
14 | 1630c762d |
15 | c71a82a5 |
hex | 7f09ab49 |
2131340105 has 32 divisors (see below), whose sum is σ = 2774701440. Its totient is φ = 1566328320.
The previous prime is 2131340093. The next prime is 2131340129. The reversal of 2131340105 is 5010431312.
It is not a de Polignac number, because 2131340105 - 24 = 2131340089 is a prime.
It is a super-2 number, since 2×21313401052 = 9085221286362822050, which contains 22 as substring.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 672254 + ... + 675416.
It is an arithmetic number, because the mean of its divisors is an integer number (86709420).
Almost surely, 22131340105 is an apocalyptic number.
It is an amenable number.
2131340105 is a deficient number, since it is larger than the sum of its proper divisors (643361335).
2131340105 is a wasteful number, since it uses less digits than its factorization.
2131340105 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3401.
The product of its (nonzero) digits is 360, while the sum is 20.
The square root of 2131340105 is about 46166.4391630977. The cubic root of 2131340105 is about 1286.9181293784.
Adding to 2131340105 its reverse (5010431312), we get a palindrome (7141771417).
The spelling of 2131340105 in words is "two billion, one hundred thirty-one million, three hundred forty thousand, one hundred five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.065 sec. • engine limits •