Base | Representation |
---|---|
bin | 111111100001100… |
… | …0000110010101001 |
3 | 12111112210012222012 |
4 | 1333003000302221 |
5 | 13331130333410 |
6 | 551301205305 |
7 | 103551263234 |
oct | 17703006251 |
9 | 5445705865 |
10 | 2131496105 |
11 | 9a41a0632 |
12 | 4b5a00835 |
13 | 27c797acb |
14 | 16312841b |
15 | c71d9605 |
hex | 7f0c0ca9 |
2131496105 has 4 divisors (see below), whose sum is σ = 2557795332. Its totient is φ = 1705196880.
The previous prime is 2131496083. The next prime is 2131496123. The reversal of 2131496105 is 5016941312.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 772172944 + 1359323161 = 27788^2 + 36869^2 .
It is not a de Polignac number, because 2131496105 - 216 = 2131430569 is a prime.
It is a Duffinian number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213149606 + ... + 213149615.
It is an arithmetic number, because the mean of its divisors is an integer number (639448833).
Almost surely, 22131496105 is an apocalyptic number.
It is an amenable number.
2131496105 is a deficient number, since it is larger than the sum of its proper divisors (426299227).
2131496105 is an equidigital number, since it uses as much as digits as its factorization.
2131496105 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 426299226.
The product of its (nonzero) digits is 6480, while the sum is 32.
The square root of 2131496105 is about 46168.1286711948. The cubic root of 2131496105 is about 1286.9495265777.
The spelling of 2131496105 in words is "two billion, one hundred thirty-one million, four hundred ninety-six thousand, one hundred five".
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