Base | Representation |
---|---|
bin | 111111001111101… |
… | …0100111000011011 |
3 | 12110220011221110122 |
4 | 1332133110320123 |
5 | 13321232004321 |
6 | 550324503455 |
7 | 103405621421 |
oct | 17637247033 |
9 | 5426157418 |
10 | 2122141211 |
11 | 999991113 |
12 | 4b284ab8b |
13 | 27a870a78 |
14 | 161bb1111 |
15 | c648c8ab |
hex | 7e7d4e1b |
2122141211 has 4 divisors (see below), whose sum is σ = 2135658192. Its totient is φ = 2108624232.
The previous prime is 2122141201. The next prime is 2122141277. The reversal of 2122141211 is 1121412212.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 2122141211 - 222 = 2117946907 is a prime.
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 2122141211.
It is not an unprimeable number, because it can be changed into a prime (2122141201) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6758255 + ... + 6758568.
It is an arithmetic number, because the mean of its divisors is an integer number (533914548).
Almost surely, 22122141211 is an apocalyptic number.
2122141211 is a deficient number, since it is larger than the sum of its proper divisors (13516981).
2122141211 is a wasteful number, since it uses less digits than its factorization.
2122141211 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13516980.
The product of its digits is 64, while the sum is 17.
The square root of 2122141211 is about 46066.7039302792. The cubic root of 2122141211 is about 1285.0640070667.
Adding to 2122141211 its reverse (1121412212), we get a palindrome (3243553423).
The spelling of 2122141211 in words is "two billion, one hundred twenty-two million, one hundred forty-one thousand, two hundred eleven".
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