Base | Representation |
---|---|
bin | 110001011111… |
… | …001100001110 |
3 | 220102002100121 |
4 | 301133030032 |
5 | 11310112224 |
6 | 1142015154 |
7 | 215160421 |
oct | 61371416 |
9 | 26362317 |
10 | 12972814 |
11 | 7360738 |
12 | 44174ba |
13 | 28c2a2a |
14 | 1a199b8 |
15 | 1213be4 |
hex | c5f30e |
12972814 has 4 divisors (see below), whose sum is σ = 19459224. Its totient is φ = 6486406.
The previous prime is 12972811. The next prime is 12972833. The reversal of 12972814 is 41827921.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41827921 = 1307 ⋅32003.
It is a self number, because there is not a number n which added to its sum of digits gives 12972814.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12972811) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3243202 + ... + 3243205.
It is an arithmetic number, because the mean of its divisors is an integer number (4864806).
Almost surely, 212972814 is an apocalyptic number.
12972814 is a deficient number, since it is larger than the sum of its proper divisors (6486410).
12972814 is an equidigital number, since it uses as much as digits as its factorization.
12972814 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6486409.
The product of its digits is 8064, while the sum is 34.
The square root of 12972814 is about 3601.7792825213. The cubic root of 12972814 is about 234.9694482691.
The spelling of 12972814 in words is "twelve million, nine hundred seventy-two thousand, eight hundred fourteen".
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