Base | Representation |
---|---|
bin | 101111100110… |
… | …111000011100 |
3 | 212111001101021 |
4 | 233212320130 |
5 | 11143330103 |
6 | 1123253524 |
7 | 211035631 |
oct | 57467034 |
9 | 25431337 |
10 | 12480028 |
11 | 7054480 |
12 | 421a2a4 |
13 | 277c642 |
14 | 192c188 |
15 | 1167bbd |
hex | be6e1c |
12480028 has 12 divisors (see below), whose sum is σ = 23825592. Its totient is φ = 5672720.
The previous prime is 12479993. The next prime is 12480029. The reversal of 12480028 is 82008421.
It is a plaindrome in base 15.
It is a junction number, because it is equal to n+sod(n) for n = 12479984 and 12480011.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12480029) 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, 141775 + ... + 141862.
It is an arithmetic number, because the mean of its divisors is an integer number (1985466).
Almost surely, 212480028 is an apocalyptic number.
It is an amenable number.
12480028 is a deficient number, since it is larger than the sum of its proper divisors (11345564).
12480028 is a wasteful number, since it uses less digits than its factorization.
12480028 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 283652 (or 283650 counting only the distinct ones).
The product of its (nonzero) digits is 1024, while the sum is 25.
The square root of 12480028 is about 3532.7083094985. The cubic root of 12480028 is about 231.9557733769.
Adding to 12480028 its reverse (82008421), we get a palindrome (94488449).
The spelling of 12480028 in words is "twelve million, four hundred eighty thousand, twenty-eight".
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