Base | Representation |
---|---|
bin | 1011110101011101001101… |
… | …0111010000110010001101 |
3 | 1201002000211111010002200100 |
4 | 2331113103113100302031 |
5 | 3201201112004431341 |
6 | 43402031323121313 |
7 | 2512105215133134 |
oct | 275272327206215 |
9 | 51060744102610 |
10 | 13013002030221 |
11 | 4167868441516 |
12 | 1562010073239 |
13 | 7351755bb21b |
14 | 32db92b5c91b |
15 | 178770d8a3b6 |
hex | bd5d35d0c8d |
13013002030221 has 12 divisors (see below), whose sum is σ = 18900406879900. Its totient is φ = 8627404659840.
The previous prime is 13013002030183. The next prime is 13013002030267. The reversal of 13013002030221 is 12203020031031.
It can be written as a sum of positive squares in 2 ways, for example, as 520410746025 + 12492591284196 = 721395^2 + 3534486^2 .
It is not a de Polignac number, because 13013002030221 - 26 = 13013002030157 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 13013002030194 and 13013002030203.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13013002030421) 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, 3994167196 + ... + 3994170453.
Almost surely, 213013002030221 is an apocalyptic number.
It is an amenable number.
13013002030221 is a deficient number, since it is larger than the sum of its proper divisors (5887404849679).
13013002030221 is a wasteful number, since it uses less digits than its factorization.
13013002030221 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7988337836 (or 7988337833 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
Adding to 13013002030221 its reverse (12203020031031), we get a palindrome (25216022061252).
The spelling of 13013002030221 in words is "thirteen trillion, thirteen billion, two million, thirty thousand, two hundred twenty-one".
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