Base | Representation |
---|---|
bin | 110000110110… |
… | …010111111010 |
3 | 220002121000110 |
4 | 300312113322 |
5 | 11234240001 |
6 | 1134245150 |
7 | 213563121 |
oct | 60662772 |
9 | 26077013 |
10 | 12805626 |
11 | 7257069 |
12 | 43567b6 |
13 | 28648c2 |
14 | 19b4ab8 |
15 | 11ce3d6 |
hex | c365fa |
12805626 has 24 divisors (see below), whose sum is σ = 26339040. Its totient is φ = 4150512.
The previous prime is 12805621. The next prime is 12805627. The reversal of 12805626 is 62650821.
It is a junction number, because it is equal to n+sod(n) for n = 12805593 and 12805602.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12805621) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7435 + ... + 8993.
It is an arithmetic number, because the mean of its divisors is an integer number (1097460).
Almost surely, 212805626 is an apocalyptic number.
12805626 is an abundant number, since it is smaller than the sum of its proper divisors (13533414).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12805626 is a wasteful number, since it uses less digits than its factorization.
12805626 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1638 (or 1601 counting only the distinct ones).
The product of its (nonzero) digits is 5760, while the sum is 30.
The square root of 12805626 is about 3578.4949350251. The cubic root of 12805626 is about 233.9556859616.
It can be divided in two parts, 12805 and 626, that added together give a palindrome (13431).
The spelling of 12805626 in words is "twelve million, eight hundred five thousand, six hundred twenty-six".
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