Base | Representation |
---|---|
bin | 101101000100… |
… | …000010101101 |
3 | 211020011102220 |
4 | 231010002231 |
5 | 11011004122 |
6 | 1101105553 |
7 | 202260225 |
oct | 55040255 |
9 | 24204386 |
10 | 11813037 |
11 | 6739345 |
12 | 3b582b9 |
13 | 25a7b82 |
14 | 17d7085 |
15 | 108525c |
hex | b440ad |
11813037 has 4 divisors (see below), whose sum is σ = 15750720. Its totient is φ = 7875356.
The previous prime is 11813033. The next prime is 11813047. The reversal of 11813037 is 73031811.
11813037 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 73031811 = 3 ⋅24343937.
It is a cyclic number.
It is not a de Polignac number, because 11813037 - 22 = 11813033 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 11812998 and 11813016.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (11813033) 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, 1968837 + ... + 1968842.
It is an arithmetic number, because the mean of its divisors is an integer number (3937680).
Almost surely, 211813037 is an apocalyptic number.
It is an amenable number.
11813037 is a deficient number, since it is larger than the sum of its proper divisors (3937683).
11813037 is an equidigital number, since it uses as much as digits as its factorization.
11813037 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3937682.
The product of its (nonzero) digits is 504, while the sum is 24.
The square root of 11813037 is about 3437.0098923337. The cubic root of 11813037 is about 227.7476239458.
Adding to 11813037 its reverse (73031811), we get a palindrome (84844848).
The spelling of 11813037 in words is "eleven million, eight hundred thirteen thousand, thirty-seven".
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