Base | Representation |
---|---|
bin | 11000010000001110… |
… | …01011100111101111 |
3 | 1020121110022110002121 |
4 | 30020013023213233 |
5 | 203131334032343 |
6 | 5552021133411 |
7 | 640446456415 |
oct | 141007134757 |
9 | 36543273077 |
10 | 13021002223 |
11 | 558201a769 |
12 | 263485a267 |
13 | 12c6846358 |
14 | 8b74752b5 |
15 | 5131eeaed |
hex | 3081cb9ef |
13021002223 has 4 divisors (see below), whose sum is σ = 13372921240. Its totient is φ = 12669083208.
The previous prime is 13021002217. The next prime is 13021002229. The reversal of 13021002223 is 32220012031.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32220012031 = 1753 ⋅18379927.
It is an interprime number because it is at equal distance from previous prime (13021002217) and next prime (13021002229).
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-13021002223 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 13021002197 and 13021002206.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13021002229) 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, 175959453 + ... + 175959526.
It is an arithmetic number, because the mean of its divisors is an integer number (3343230310).
Almost surely, 213021002223 is an apocalyptic number.
13021002223 is a deficient number, since it is larger than the sum of its proper divisors (351919017).
13021002223 is an equidigital number, since it uses as much as digits as its factorization.
13021002223 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 351919016.
The product of its (nonzero) digits is 144, while the sum is 16.
Adding to 13021002223 its reverse (32220012031), we get a palindrome (45241014254).
The spelling of 13021002223 in words is "thirteen billion, twenty-one million, two thousand, two hundred twenty-three".
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