Base | Representation |
---|---|
bin | 110000101001… |
… | …110100100001 |
3 | 212222222111010 |
4 | 300221310201 |
5 | 11231113314 |
6 | 1133211133 |
7 | 213260166 |
oct | 60516441 |
9 | 25888433 |
10 | 12754209 |
11 | 7221476 |
12 | 4330aa9 |
13 | 2847390 |
14 | 19a006d |
15 | 11be059 |
hex | c29d21 |
12754209 has 16 divisors (see below), whose sum is σ = 18439232. Its totient is φ = 7795008.
The previous prime is 12754177. The next prime is 12754219. The reversal of 12754209 is 90245721.
It is not a de Polignac number, because 12754209 - 25 = 12754177 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (12754219) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5082 + ... + 7164.
It is an arithmetic number, because the mean of its divisors is an integer number (1152452).
Almost surely, 212754209 is an apocalyptic number.
It is an amenable number.
12754209 is a deficient number, since it is larger than the sum of its proper divisors (5685023).
12754209 is a wasteful number, since it uses less digits than its factorization.
12754209 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2256.
The product of its (nonzero) digits is 5040, while the sum is 30.
The square root of 12754209 is about 3571.3035435258. The cubic root of 12754209 is about 233.6421405589.
The spelling of 12754209 in words is "twelve million, seven hundred fifty-four thousand, two hundred nine".
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