Base | Representation |
---|---|
bin | 101110010000… |
… | …011010110001 |
3 | 211211001120102 |
4 | 232100122301 |
5 | 11101011443 |
6 | 1111522145 |
7 | 205032254 |
oct | 56203261 |
9 | 24731512 |
10 | 12125873 |
11 | 6932391 |
12 | 4089355 |
13 | 2687396 |
14 | 187909b |
15 | 10e7cb8 |
hex | b906b1 |
12125873 has 8 divisors (see below), whose sum is σ = 12553800. Its totient is φ = 11704320.
The previous prime is 12125851. The next prime is 12125887. The reversal of 12125873 is 37852121.
It can be written as a sum of positive squares in 4 ways, for example, as 237169 + 11888704 = 487^2 + 3448^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 12125873 - 26 = 12125809 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (12125803) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2453 + ... + 5501.
It is an arithmetic number, because the mean of its divisors is an integer number (1569225).
Almost surely, 212125873 is an apocalyptic number.
It is an amenable number.
12125873 is a deficient number, since it is larger than the sum of its proper divisors (427927).
12125873 is an equidigital number, since it uses as much as digits as its factorization.
12125873 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3187.
The product of its digits is 3360, while the sum is 29.
The square root of 12125873 is about 3482.2224225342. Note that the first 3 decimals coincide. The cubic root of 12125873 is about 229.7405581191.
Adding to 12125873 its reverse (37852121), we get a palindrome (49977994).
The spelling of 12125873 in words is "twelve million, one hundred twenty-five thousand, eight hundred seventy-three".
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