Base | Representation |
---|---|
bin | 110001001001… |
… | …001100010001 |
3 | 220020111202020 |
4 | 301021030101 |
5 | 11244221310 |
6 | 1140042053 |
7 | 214333623 |
oct | 61111421 |
9 | 26214666 |
10 | 12882705 |
11 | 72a9a70 |
12 | 4393329 |
13 | 2890a04 |
14 | 19d4c13 |
15 | 11e7170 |
hex | c49311 |
12882705 has 32 divisors (see below), whose sum is σ = 22671360. Its totient is φ = 6194880.
The previous prime is 12882677. The next prime is 12882707. The reversal of 12882705 is 50728821.
It is not a de Polignac number, because 12882705 - 29 = 12882193 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (33).
It is not an unprimeable number, because it can be changed into a prime (12882707) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26656 + ... + 27134.
It is an arithmetic number, because the mean of its divisors is an integer number (708480).
Almost surely, 212882705 is an apocalyptic number.
12882705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
12882705 is a deficient number, since it is larger than the sum of its proper divisors (9788655).
12882705 is a wasteful number, since it uses less digits than its factorization.
12882705 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 661.
The product of its (nonzero) digits is 8960, while the sum is 33.
The square root of 12882705 is about 3589.2485285920. The cubic root of 12882705 is about 234.4241521802.
It can be divided in two parts, 1288 and 2705, that added together give a palindrome (3993).
The spelling of 12882705 in words is "twelve million, eight hundred eighty-two thousand, seven hundred five".
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