Base | Representation |
---|---|
bin | 11000011100001010… |
… | …11101001101110101 |
3 | 1020212102212200212000 |
4 | 30032011131031311 |
5 | 203333012311201 |
6 | 10010001045513 |
7 | 643104321120 |
oct | 141605351565 |
9 | 36772780760 |
10 | 13121213301 |
11 | 5623645839 |
12 | 2662326899 |
13 | 1311531c51 |
14 | 8c68bd3b7 |
15 | 51bde6d86 |
hex | 30e15d375 |
13121213301 has 32 divisors (see below), whose sum is σ = 22221619200. Its totient is φ = 7495876080.
The previous prime is 13121213293. The next prime is 13121213317. The reversal of 13121213301 is 10331212131.
13121213301 is a `hidden beast` number, since 1 + 312 + 1 + 21 + 330 + 1 = 666.
It is not a de Polignac number, because 13121213301 - 23 = 13121213293 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13121203301) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1029196 + ... + 1041866.
It is an arithmetic number, because the mean of its divisors is an integer number (694425600).
Almost surely, 213121213301 is an apocalyptic number.
It is an amenable number.
13121213301 is a deficient number, since it is larger than the sum of its proper divisors (9100405899).
13121213301 is a wasteful number, since it uses less digits than its factorization.
13121213301 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 18166 (or 18160 counting only the distinct ones).
The product of its (nonzero) digits is 108, while the sum is 18.
Adding to 13121213301 its reverse (10331212131), we get a palindrome (23452425432).
The spelling of 13121213301 in words is "thirteen billion, one hundred twenty-one million, two hundred thirteen thousand, three hundred one".
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