Base | Representation |
---|---|
bin | 11001000011110111… |
… | …10001111011010101 |
3 | 1021201122111020112222 |
4 | 30201323301323111 |
5 | 210023240033023 |
6 | 10103014352125 |
7 | 654256664102 |
oct | 144173617325 |
9 | 37648436488 |
10 | 13454221013 |
11 | 5784614422 |
12 | 273595b645 |
13 | 1365518a2c |
14 | 918c05aa9 |
15 | 53b275cc8 |
hex | 321ef1ed5 |
13454221013 has 4 divisors (see below), whose sum is σ = 14039187168. Its totient is φ = 12869254860.
The previous prime is 13454220977. The next prime is 13454221021. The reversal of 13454221013 is 31012245431.
It is a happy number.
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 not a de Polignac number, because 13454221013 - 224 = 13437443797 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 (13454221093) 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, 292483043 + ... + 292483088.
It is an arithmetic number, because the mean of its divisors is an integer number (3509796792).
Almost surely, 213454221013 is an apocalyptic number.
It is an amenable number.
13454221013 is a deficient number, since it is larger than the sum of its proper divisors (584966155).
13454221013 is an equidigital number, since it uses as much as digits as its factorization.
13454221013 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 584966154.
The product of its (nonzero) digits is 2880, while the sum is 26.
Adding to 13454221013 its reverse (31012245431), we get a palindrome (44466466444).
The spelling of 13454221013 in words is "thirteen billion, four hundred fifty-four million, two hundred twenty-one thousand, thirteen".
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