Base | Representation |
---|---|
bin | 1000010001110010… |
… | …1011100100011101 |
3 | 12201212021221020121 |
4 | 2010130223210131 |
5 | 14022330023010 |
6 | 1004255314541 |
7 | 106031426512 |
oct | 20434534435 |
9 | 5655257217 |
10 | 2222111005 |
11 | a40361984 |
12 | 52021ba51 |
13 | 2954a38aa |
14 | 171195309 |
15 | d01383da |
hex | 8472b91d |
2222111005 has 8 divisors (see below), whose sum is σ = 2666801592. Its totient is φ = 1777509888.
The previous prime is 2222110997. The next prime is 2222111011. The reversal of 2222111005 is 5001112222.
It is a happy number.
It can be written as a sum of positive squares in 4 ways, for example, as 598585156 + 1623525849 = 24466^2 + 40293^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 2222111005 - 23 = 2222110997 is a prime.
It is a super-2 number, since 2×22221110052 = 9875554637084220050, which contains 22 as substring.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 2222111005.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59569 + ... + 89401.
It is an arithmetic number, because the mean of its divisors is an integer number (333350199).
Almost surely, 22222111005 is an apocalyptic number.
It is an amenable number.
2222111005 is a deficient number, since it is larger than the sum of its proper divisors (444690587).
2222111005 is a wasteful number, since it uses less digits than its factorization.
2222111005 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 44735.
The product of its (nonzero) digits is 80, while the sum is 16.
The square root of 2222111005 is about 47139.2724275630. The cubic root of 2222111005 is about 1304.9341099912.
Adding to 2222111005 its reverse (5001112222), we get a palindrome (7223223227).
The spelling of 2222111005 in words is "two billion, two hundred twenty-two million, one hundred eleven thousand, five".
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