Base | Representation |
---|---|
bin | 110000010111… |
… | …111111101001 |
3 | 212212021022211 |
4 | 300113333221 |
5 | 11221244233 |
6 | 1131445121 |
7 | 212534260 |
oct | 60277751 |
9 | 25767284 |
10 | 12681193 |
11 | 7181628 |
12 | 42b67a1 |
13 | 2820085 |
14 | 19815d7 |
15 | 11a75cd |
hex | c17fe9 |
12681193 has 8 divisors (see below), whose sum is σ = 14604480. Its totient is φ = 10785840.
The previous prime is 12681187. The next prime is 12681203. The reversal of 12681193 is 39118621.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-12681193 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (12681103) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5998 + ... + 7831.
It is an arithmetic number, because the mean of its divisors is an integer number (1825560).
Almost surely, 212681193 is an apocalyptic number.
It is an amenable number.
12681193 is a deficient number, since it is larger than the sum of its proper divisors (1923287).
12681193 is a wasteful number, since it uses less digits than its factorization.
12681193 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13967.
The product of its digits is 2592, while the sum is 31.
The square root of 12681193 is about 3561.0662729020. The cubic root of 12681193 is about 233.1954312131.
The spelling of 12681193 in words is "twelve million, six hundred eighty-one thousand, one hundred ninety-three".
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