Base | Representation |
---|---|
bin | 110000110010… |
… | …100100010110 |
3 | 220001210122010 |
4 | 300302210112 |
5 | 11233240123 |
6 | 1134045050 |
7 | 213466512 |
oct | 60624426 |
9 | 26053563 |
10 | 12790038 |
11 | 7246388 |
12 | 4349786 |
13 | 285a791 |
14 | 19ad142 |
15 | 11c9993 |
hex | c32916 |
12790038 has 16 divisors (see below), whose sum is σ = 25931376. Its totient is φ = 4204800.
The previous prime is 12790027. The next prime is 12790039. The reversal of 12790038 is 83009721.
It is a happy number.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 12789987 and 12790014.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12790039) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14163 + ... + 15038.
It is an arithmetic number, because the mean of its divisors is an integer number (1620711).
Almost surely, 212790038 is an apocalyptic number.
12790038 is an abundant number, since it is smaller than the sum of its proper divisors (13141338).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12790038 is a wasteful number, since it uses less digits than its factorization.
12790038 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 29279.
The product of its (nonzero) digits is 3024, while the sum is 30.
The square root of 12790038 is about 3576.3162611827. The cubic root of 12790038 is about 233.8607177553.
Adding to 12790038 its reverse (83009721), we get a palindrome (95799759).
The spelling of 12790038 in words is "twelve million, seven hundred ninety thousand, thirty-eight".
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