Base | Representation |
---|---|
bin | 11000101001001001… |
… | …00001100110010011 |
3 | 1021011000121200222012 |
4 | 30110210201212103 |
5 | 204043341133021 |
6 | 10024445133135 |
7 | 645565215554 |
oct | 142444414623 |
9 | 37130550865 |
10 | 13230021011 |
11 | 567a002669 |
12 | 269285a1ab |
13 | 132ac3a6cc |
14 | 8d712432b |
15 | 52673b35b |
hex | 314921993 |
13230021011 has 4 divisors (see below), whose sum is σ = 13236362352. Its totient is φ = 13223679672.
The previous prime is 13230020927. The next prime is 13230021019. The reversal of 13230021011 is 11012003231.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11012003231 = 18433 ⋅597407.
It is a cyclic number.
It is not a de Polignac number, because 13230021011 - 210 = 13230019987 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (13230021019) 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, 3167540 + ... + 3171713.
It is an arithmetic number, because the mean of its divisors is an integer number (3309090588).
Almost surely, 213230021011 is an apocalyptic number.
13230021011 is a deficient number, since it is larger than the sum of its proper divisors (6341341).
13230021011 is an equidigital number, since it uses as much as digits as its factorization.
13230021011 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6341340.
The product of its (nonzero) digits is 36, while the sum is 14.
Adding to 13230021011 its reverse (11012003231), we get a palindrome (24242024242).
The spelling of 13230021011 in words is "thirteen billion, two hundred thirty million, twenty-one thousand, eleven".
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