Base | Representation |
---|---|
bin | 1100010010000010100… |
… | …1010100011101001111 |
3 | 202011122000210110210200 |
4 | 3010200221110131033 |
5 | 11424112240200421 |
6 | 240533233504543 |
7 | 21146542521114 |
oct | 3044051243517 |
9 | 664560713720 |
10 | 211001100111 |
11 | 8153769057a |
12 | 34a87a12153 |
13 | 16b88540479 |
14 | a2d919a90b |
15 | 574e17e726 |
hex | 3120a5474f |
211001100111 has 24 divisors (see below), whose sum is σ = 305289129600. Its totient is φ = 140432271936.
The previous prime is 211001100097. The next prime is 211001100113. The reversal of 211001100111 is 111001100112.
It is not a de Polignac number, because 211001100111 - 219 = 211000575823 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (9).
It is a junction number, because it is equal to n+sod(n) for n = 211001100093 and 211001100102.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (211001100113) 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 23 ways as a sum of consecutive naturals, for example, 28707865 + ... + 28715213.
It is an arithmetic number, because the mean of its divisors is an integer number (12720380400).
Almost surely, 2211001100111 is an apocalyptic number.
211001100111 is a deficient number, since it is larger than the sum of its proper divisors (94288029489).
211001100111 is a wasteful number, since it uses less digits than its factorization.
211001100111 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12255 (or 12252 counting only the distinct ones).
The product of its (nonzero) digits is 2, while the sum is 9.
Adding to 211001100111 its reverse (111001100112), we get a palindrome (322002200223).
Subtracting from 211001100111 its reverse (111001100112), we obtain a palindrome (99999999999).
It can be divided in two parts, 21100 and 1100111, that added together give a palindrome (1121211).
The spelling of 211001100111 in words is "two hundred eleven billion, one million, one hundred thousand, one hundred eleven".
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