Base | Representation |
---|---|
bin | 110001000110… |
… | …100110111101 |
3 | 220012222020101 |
4 | 301012212331 |
5 | 11243402000 |
6 | 1135521101 |
7 | 214261030 |
oct | 61064675 |
9 | 26188211 |
10 | 12872125 |
11 | 72a2022 |
12 | 4389191 |
13 | 2888c56 |
14 | 19d1017 |
15 | 11e3e6a |
hex | c469bd |
12872125 has 32 divisors (see below), whose sum is σ = 18809856. Its totient is φ = 8611200.
The previous prime is 12872117. The next prime is 12872131. The reversal of 12872125 is 52127821.
It is not a de Polignac number, because 12872125 - 23 = 12872117 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 12872093 and 12872102.
It is a congruent number.
It is an unprimeable number.
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 in 31 ways as a sum of consecutive naturals, for example, 40969 + ... + 41281.
It is an arithmetic number, because the mean of its divisors is an integer number (587808).
Almost surely, 212872125 is an apocalyptic number.
It is an amenable number.
12872125 is a deficient number, since it is larger than the sum of its proper divisors (5937731).
12872125 is an equidigital number, since it uses as much as digits as its factorization.
12872125 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 382 (or 372 counting only the distinct ones).
The product of its digits is 2240, while the sum is 28.
The square root of 12872125 is about 3587.7743797513. The cubic root of 12872125 is about 234.3599605164.
Adding to 12872125 its reverse (52127821), we get a palindrome (64999946).
The spelling of 12872125 in words is "twelve million, eight hundred seventy-two thousand, one hundred twenty-five".
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