Base | Representation |
---|---|
bin | 11000011110111010… |
… | …01100100011110111 |
3 | 1020221001011020112112 |
4 | 30033131030203313 |
5 | 203404404320001 |
6 | 10012142041235 |
7 | 643503654614 |
oct | 141735144367 |
9 | 36831136475 |
10 | 13144213751 |
11 | 5635625379 |
12 | 2669b7921b |
13 | 1316225c96 |
14 | 8c998950b |
15 | 51de3bcbb |
hex | 30f74c8f7 |
13144213751 has 4 divisors (see below), whose sum is σ = 13145072832. Its totient is φ = 13143354672.
The previous prime is 13144213711. The next prime is 13144213759. The reversal of 13144213751 is 15731244131.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 13144213751 - 218 = 13143951607 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 (13144213759) 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, 406166 + ... + 437331.
It is an arithmetic number, because the mean of its divisors is an integer number (3286268208).
Almost surely, 213144213751 is an apocalyptic number.
13144213751 is a deficient number, since it is larger than the sum of its proper divisors (859081).
13144213751 is an equidigital number, since it uses as much as digits as its factorization.
13144213751 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 859080.
The product of its digits is 10080, while the sum is 32.
Adding to 13144213751 its reverse (15731244131), we get a palindrome (28875457882).
The spelling of 13144213751 in words is "thirteen billion, one hundred forty-four million, two hundred thirteen thousand, seven hundred fifty-one".
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