Base | Representation |
---|---|
bin | 110000011010… |
… | …111110000111 |
3 | 212212220001022 |
4 | 300122332013 |
5 | 11222142013 |
6 | 1132021355 |
7 | 212614643 |
oct | 60327607 |
9 | 25786038 |
10 | 12693383 |
11 | 718a7aa |
12 | 430185b |
13 | 28257a1 |
14 | 1985c23 |
15 | 11ab008 |
hex | c1af87 |
12693383 has 4 divisors (see below), whose sum is σ = 12750528. Its totient is φ = 12636240.
The previous prime is 12693379. The next prime is 12693413. The reversal of 12693383 is 38339621.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38339621 = 191 ⋅200731.
It is a cyclic number.
It is not a de Polignac number, because 12693383 - 22 = 12693379 is a prime.
It is a super-2 number, since 2×126933832 = 322243943969378, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12698383) 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 in 3 ways as a sum of consecutive naturals, for example, 28238 + ... + 28683.
It is an arithmetic number, because the mean of its divisors is an integer number (3187632).
Almost surely, 212693383 is an apocalyptic number.
12693383 is a deficient number, since it is larger than the sum of its proper divisors (57145).
12693383 is an equidigital number, since it uses as much as digits as its factorization.
12693383 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 57144.
The product of its digits is 23328, while the sum is 35.
The square root of 12693383 is about 3562.7774277942. Note that the first 3 decimals coincide. The cubic root of 12693383 is about 233.2701282321.
The spelling of 12693383 in words is "twelve million, six hundred ninety-three thousand, three hundred eighty-three".
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