Base | Representation |
---|---|
bin | 1011110110000010111100… |
… | …0011101000010100101101 |
3 | 1201002222222100021122100021 |
4 | 2331200233003220110231 |
5 | 3201332332330302341 |
6 | 43410424331402141 |
7 | 2512614211163215 |
oct | 275405703502455 |
9 | 51088870248307 |
10 | 13023130322221 |
11 | 4171095611178 |
12 | 1563b77bb3351 |
13 | 7360caa46906 |
14 | 330473d59245 |
15 | 178b6513a9d1 |
hex | bd82f0e852d |
13023130322221 has 4 divisors (see below), whose sum is σ = 13023143900352. Its totient is φ = 13023116744092.
The previous prime is 13023130322203. The next prime is 13023130322263. The reversal of 13023130322221 is 12222303132031.
13023130322221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 13023130322221 - 29 = 13023130321709 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13023130392221) 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, 5231221 + ... + 7308346.
It is an arithmetic number, because the mean of its divisors is an integer number (3255785975088).
Almost surely, 213023130322221 is an apocalyptic number.
It is an amenable number.
13023130322221 is a deficient number, since it is larger than the sum of its proper divisors (13578131).
13023130322221 is a wasteful number, since it uses less digits than its factorization.
13023130322221 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13578130.
The product of its (nonzero) digits is 2592, while the sum is 25.
Adding to 13023130322221 its reverse (12222303132031), we get a palindrome (25245433454252).
The spelling of 13023130322221 in words is "thirteen trillion, twenty-three billion, one hundred thirty million, three hundred twenty-two thousand, two hundred twenty-one".
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