Base | Representation |
---|---|
bin | 10000001010111001011… |
… | …101111111111001001101 |
3 | 10221020020100200220202202 |
4 | 100022321131333321031 |
5 | 121201231040224323 |
6 | 2210252335331245 |
7 | 143165620310300 |
oct | 20127135777115 |
9 | 3836210626682 |
10 | 1111213211213 |
11 | 3992989855a6 |
12 | 15b43b080b25 |
13 | 80a2cc342b1 |
14 | 3bad67d8b37 |
15 | 1dd8a108d28 |
hex | 102b977fe4d |
1111213211213 has 12 divisors (see below), whose sum is σ = 1292665120992. Its totient is φ = 952446844440.
The previous prime is 1111213211183. The next prime is 1111213211219. The reversal of 1111213211213 is 3121123121111.
It is not a de Polignac number, because 1111213211213 - 28 = 1111213210957 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1111213211219) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2150618 + ... + 2616788.
It is an arithmetic number, because the mean of its divisors is an integer number (107722093416).
Almost surely, 21111213211213 is an apocalyptic number.
It is an amenable number.
1111213211213 is a deficient number, since it is larger than the sum of its proper divisors (181451909779).
1111213211213 is an equidigital number, since it uses as much as digits as its factorization.
1111213211213 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 514832 (or 514825 counting only the distinct ones).
The product of its digits is 72, while the sum is 20.
Adding to 1111213211213 its reverse (3121123121111), we get a palindrome (4232336332324).
The spelling of 1111213211213 in words is "one trillion, one hundred eleven billion, two hundred thirteen million, two hundred eleven thousand, two hundred thirteen".
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