Base | Representation |
---|---|
bin | 111110111100101… |
… | …1100100001000011 |
3 | 12110012111102210110 |
4 | 1331321130201003 |
5 | 13311211223021 |
6 | 545332002403 |
7 | 103225332411 |
oct | 17571344103 |
9 | 5405442713 |
10 | 2112211011 |
11 | 994319439 |
12 | 4ab460403 |
13 | 2787a4c01 |
14 | 1607482b1 |
15 | c567a476 |
hex | 7de5c843 |
2112211011 has 8 divisors (see below), whose sum is σ = 2818084864. Its totient is φ = 1407238920.
The previous prime is 2112210983. The next prime is 2112211039. The reversal of 2112211011 is 1101122112.
It is an interprime number because it is at equal distance from previous prime (2112210983) and next prime (2112211039).
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 2112211011 - 213 = 2112202819 is a prime.
It is a super-2 number, since 2×21122110112 = 8922870709979284242, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (2112211051) by changing a digit.
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 7 ways as a sum of consecutive naturals, for example, 219955 + ... + 229356.
It is an arithmetic number, because the mean of its divisors is an integer number (352260608).
Almost surely, 22112211011 is an apocalyptic number.
2112211011 is a deficient number, since it is larger than the sum of its proper divisors (705873853).
2112211011 is a wasteful number, since it uses less digits than its factorization.
2112211011 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 450881.
The product of its (nonzero) digits is 8, while the sum is 12.
The square root of 2112211011 is about 45958.7968837305. The cubic root of 2112211011 is about 1283.0564594281.
Adding to 2112211011 its reverse (1101122112), we get a palindrome (3213333123).
The spelling of 2112211011 in words is "two billion, one hundred twelve million, two hundred eleven thousand, eleven".
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