Base | Representation |
---|---|
bin | 110000110010… |
… | …110110111110 |
3 | 220001212021021 |
4 | 300302312332 |
5 | 11233304410 |
6 | 1134054354 |
7 | 213503134 |
oct | 60626676 |
9 | 26055237 |
10 | 12791230 |
11 | 7247271 |
12 | 434a3ba |
13 | 285b19a |
14 | 19ad754 |
15 | 11c9eda |
hex | c32dbe |
12791230 has 8 divisors (see below), whose sum is σ = 23024232. Its totient is φ = 5116488.
The previous prime is 12791227. The next prime is 12791231. The reversal of 12791230 is 3219721.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a junction number, because it is equal to n+sod(n) for n = 12791195 and 12791204.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12791231) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 639552 + ... + 639571.
It is an arithmetic number, because the mean of its divisors is an integer number (2878029).
Almost surely, 212791230 is an apocalyptic number.
12791230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12791230 is a deficient number, since it is larger than the sum of its proper divisors (10233002).
12791230 is a wasteful number, since it uses less digits than its factorization.
12791230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1279130.
The product of its (nonzero) digits is 756, while the sum is 25.
The square root of 12791230 is about 3576.4829092280. The cubic root of 12791230 is about 233.8679826103.
The spelling of 12791230 in words is "twelve million, seven hundred ninety-one thousand, two hundred thirty".
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