Base | Representation |
---|---|
bin | 110000110010… |
… | …100100010101 |
3 | 220001210122002 |
4 | 300302210111 |
5 | 11233240122 |
6 | 1134045045 |
7 | 213466511 |
oct | 60624425 |
9 | 26053562 |
10 | 12790037 |
11 | 7246387 |
12 | 4349785 |
13 | 285a790 |
14 | 19ad141 |
15 | 11c9992 |
hex | c32915 |
12790037 has 4 divisors (see below), whose sum is σ = 13773900. Its totient is φ = 11806176.
The previous prime is 12790027. The next prime is 12790039. The reversal of 12790037 is 73009721.
It is a happy number.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 73009721 = 277 ⋅263573.
It can be written as a sum of positive squares in 2 ways, for example, as 5424241 + 7365796 = 2329^2 + 2714^2 .
It is a cyclic number.
It is not a de Polignac number, because 12790037 - 214 = 12773653 is a prime.
It is a super-2 number, since 2×127900372 = 327170092922738, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 12789991 and 12790009.
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 3 ways as a sum of consecutive naturals, for example, 491912 + ... + 491937.
It is an arithmetic number, because the mean of its divisors is an integer number (3443475).
Almost surely, 212790037 is an apocalyptic number.
It is an amenable number.
12790037 is a deficient number, since it is larger than the sum of its proper divisors (983863).
12790037 is an equidigital number, since it uses as much as digits as its factorization.
12790037 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 983862.
The product of its (nonzero) digits is 2646, while the sum is 29.
The square root of 12790037 is about 3576.3161213741. The cubic root of 12790037 is about 233.8607116604.
Adding to 12790037 its reverse (73009721), we get a palindrome (85799758).
The spelling of 12790037 in words is "twelve million, seven hundred ninety thousand, thirty-seven".
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