Base | Representation |
---|---|
bin | 101101110011… |
… | …110001000001 |
3 | 211121002120202 |
4 | 231303301001 |
5 | 11033233023 |
6 | 1105214545 |
7 | 204033146 |
oct | 55636101 |
9 | 24532522 |
10 | 12008513 |
11 | 68621a0 |
12 | 4031455 |
13 | 2645b3a |
14 | 18483cd |
15 | 10c3128 |
hex | b73c41 |
12008513 has 8 divisors (see below), whose sum is σ = 13789920. Its totient is φ = 10342080.
The previous prime is 12008509. The next prime is 12008519. The reversal of 12008513 is 31580021.
12008513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 12008513 - 22 = 12008509 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (12008519) 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, 28520 + ... + 28937.
It is an arithmetic number, because the mean of its divisors is an integer number (1723740).
Almost surely, 212008513 is an apocalyptic number.
It is an amenable number.
12008513 is a deficient number, since it is larger than the sum of its proper divisors (1781407).
12008513 is a wasteful number, since it uses less digits than its factorization.
12008513 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 57487.
The product of its (nonzero) digits is 240, while the sum is 20.
The square root of 12008513 is about 3465.3301430023. The cubic root of 12008513 is about 228.9969743376.
Adding to 12008513 its reverse (31580021), we get a palindrome (43588534).
It can be divided in two parts, 12008 and 513, that added together give a palindrome (12521).
The spelling of 12008513 in words is "twelve million, eight thousand, five hundred thirteen".
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