Base | Representation |
---|---|
bin | 110001001111… |
… | …100100110011 |
3 | 220021211121121 |
4 | 301033210303 |
5 | 11301040401 |
6 | 1140403111 |
7 | 214503064 |
oct | 61174463 |
9 | 26254547 |
10 | 12908851 |
11 | 731767a |
12 | 43a6497 |
13 | 289c897 |
14 | 1a0056b |
15 | 11eeca1 |
hex | c4f933 |
12908851 has 2 divisors, whose sum is σ = 12908852. Its totient is φ = 12908850.
The previous prime is 12908849. The next prime is 12908867. The reversal of 12908851 is 15880921.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 12908851 - 21 = 12908849 is a prime.
It is a super-3 number, since 3×129088513 (a number of 22 digits) contains 333 as substring.
Together with 12908849, it forms a pair of twin primes.
It is not a weakly prime, because it can be changed into another prime (12908251) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6454425 + 6454426.
It is an arithmetic number, because the mean of its divisors is an integer number (6454426).
Almost surely, 212908851 is an apocalyptic number.
12908851 is a deficient number, since it is larger than the sum of its proper divisors (1).
12908851 is an equidigital number, since it uses as much as digits as its factorization.
12908851 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 5760, while the sum is 34.
The square root of 12908851 is about 3592.8889490214. Note that the first 3 decimals coincide. The cubic root of 12908851 is about 234.5826362880.
The spelling of 12908851 in words is "twelve million, nine hundred eight thousand, eight hundred fifty-one".
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