Base | Representation |
---|---|
bin | 100001000101100… |
… | …0111111000011001 |
3 | 2212101001121201110 |
4 | 1002023013320121 |
5 | 4233203241441 |
6 | 302055410533 |
7 | 36340435014 |
oct | 10213077031 |
9 | 2771047643 |
10 | 1110212121 |
11 | 51a75a887 |
12 | 26b983a49 |
13 | 149017c65 |
14 | a763a37b |
15 | 67701b16 |
hex | 422c7e19 |
1110212121 has 16 divisors (see below), whose sum is σ = 1526688000. Its totient is φ = 717107328.
The previous prime is 1110212119. The next prime is 1110212153. The reversal of 1110212121 is 1212120111.
It is not a de Polignac number, because 1110212121 - 21 = 1110212119 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 1110212097 and 1110212106.
It is not an unprimeable number, because it can be changed into a prime (1110212101) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5605 + ... + 47453.
It is an arithmetic number, because the mean of its divisors is an integer number (95418000).
Almost surely, 21110212121 is an apocalyptic number.
It is an amenable number.
1110212121 is a deficient number, since it is larger than the sum of its proper divisors (416475879).
1110212121 is a wasteful number, since it uses less digits than its factorization.
1110212121 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 42128.
The product of its (nonzero) digits is 8, while the sum is 12.
The square root of 1110212121 is about 33319.8457529443. The cubic root of 1110212121 is about 1035.4647561514.
Adding to 1110212121 its reverse (1212120111), we get a palindrome (2322332232).
The spelling of 1110212121 in words is "one billion, one hundred ten million, two hundred twelve thousand, one hundred twenty-one".
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