Base | Representation |
---|---|
bin | 110010000011… |
… | …111001000110 |
3 | 220200201120022 |
4 | 302003321012 |
5 | 11324420032 |
6 | 1145135142 |
7 | 216354614 |
oct | 62037106 |
9 | 26621508 |
10 | 13123142 |
11 | 745367a |
12 | 448a4b2 |
13 | 2946296 |
14 | 1a586b4 |
15 | 1243512 |
hex | c83e46 |
13123142 has 8 divisors (see below), whose sum is σ = 19859256. Its totient is φ = 6503392.
The previous prime is 13123111. The next prime is 13123147. The reversal of 13123142 is 24132131.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a self number, because there is not a number n which added to its sum of digits gives 13123142.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13123147) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28808 + ... + 29259.
It is an arithmetic number, because the mean of its divisors is an integer number (2482407).
Almost surely, 213123142 is an apocalyptic number.
13123142 is a deficient number, since it is larger than the sum of its proper divisors (6736114).
13123142 is a wasteful number, since it uses less digits than its factorization.
13123142 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 58182.
The product of its digits is 144, while the sum is 17.
The square root of 13123142 is about 3622.5877491097. The cubic root of 13123142 is about 235.8735677281.
Adding to 13123142 its reverse (24132131), we get a palindrome (37255273).
The spelling of 13123142 in words is "thirteen million, one hundred twenty-three thousand, one hundred forty-two".
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