Base | Representation |
---|---|
bin | 110000011100… |
… | …100111011101 |
3 | 212220020022000 |
4 | 300130213131 |
5 | 11222401000 |
6 | 1132112513 |
7 | 212643414 |
oct | 60344735 |
9 | 25806260 |
10 | 12700125 |
11 | 7194879 |
12 | 4305739 |
13 | 2828889 |
14 | 198847b |
15 | 11ad000 |
hex | c1c9dd |
12700125 has 64 divisors (see below), whose sum is σ = 24261120. Its totient is φ = 6552000.
The previous prime is 12700123. The next prime is 12700141. The reversal of 12700125 is 52100721.
It is not a de Polignac number, because 12700125 - 21 = 12700123 is a prime.
It is a super-2 number, since 2×127001252 = 322586350031250, which contains 22 as substring.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 12700098 and 12700107.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12700123) 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 in 63 ways as a sum of consecutive naturals, for example, 178840 + ... + 178910.
It is an arithmetic number, because the mean of its divisors is an integer number (379080).
Almost surely, 212700125 is an apocalyptic number.
12700125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
12700125 is a deficient number, since it is larger than the sum of its proper divisors (11560995).
12700125 is an equidigital number, since it uses as much as digits as its factorization.
12700125 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 148 (or 132 counting only the distinct ones).
The product of its (nonzero) digits is 140, while the sum is 18.
The square root of 12700125 is about 3563.7234741209. The cubic root of 12700125 is about 233.3114208447.
Adding to 12700125 its reverse (52100721), we get a palindrome (64800846).
The spelling of 12700125 in words is "twelve million, seven hundred thousand, one hundred twenty-five".
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