Base | Representation |
---|---|
bin | 10100100000000001… |
… | …100111001011010101 |
3 | 2002211001201001201021 |
4 | 110200001213023111 |
5 | 330040101130010 |
6 | 14040124201141 |
7 | 1406324006065 |
oct | 244001471325 |
9 | 62731631637 |
10 | 22012130005 |
11 | 9376301088 |
12 | 43239991b1 |
13 | 20ca50b1c8 |
14 | 10cb61b3a5 |
15 | 88c7278da |
hex | 5200672d5 |
22012130005 has 4 divisors (see below), whose sum is σ = 26414556012. Its totient is φ = 17609704000.
The previous prime is 22012129973. The next prime is 22012130017. The reversal of 22012130005 is 50003121022.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50003121022 = 2 ⋅25001560511.
It can be written as a sum of positive squares in 2 ways, for example, as 7737137521 + 14274992484 = 87961^2 + 119478^2 .
It is not a de Polignac number, because 22012130005 - 25 = 22012129973 is a prime.
It is a Duffinian number.
It is a congruent 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, 2201212996 + ... + 2201213005.
It is an arithmetic number, because the mean of its divisors is an integer number (6603639003).
Almost surely, 222012130005 is an apocalyptic number.
It is an amenable number.
22012130005 is a deficient number, since it is larger than the sum of its proper divisors (4402426007).
22012130005 is an equidigital number, since it uses as much as digits as its factorization.
22012130005 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4402426006.
The product of its (nonzero) digits is 120, while the sum is 16.
Adding to 22012130005 its reverse (50003121022), we get a palindrome (72015251027).
The spelling of 22012130005 in words is "twenty-two billion, twelve million, one hundred thirty thousand, five".
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