Base | Representation |
---|---|
bin | 110000000111… |
… | …001000100010 |
3 | 212201202120221 |
4 | 300013020202 |
5 | 11212042010 |
6 | 1130153254 |
7 | 212126026 |
oct | 60071042 |
9 | 25652527 |
10 | 12612130 |
11 | 7134753 |
12 | 428282a |
13 | 27c77cb |
14 | 1964386 |
15 | 1191dda |
hex | c07222 |
12612130 has 16 divisors (see below), whose sum is σ = 24037560. Its totient is φ = 4748032.
The previous prime is 12612109. The next prime is 12612139. The reversal of 12612130 is 3121621.
It can be written as a sum of positive squares in 4 ways, for example, as 10699441 + 1912689 = 3271^2 + 1383^2 .
It is not an unprimeable number, because it can be changed into a prime (12612139) 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, 36925 + ... + 37264.
Almost surely, 212612130 is an apocalyptic number.
12612130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12612130 is a deficient number, since it is larger than the sum of its proper divisors (11425430).
12612130 is a wasteful number, since it uses less digits than its factorization.
12612130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 74213.
The product of its (nonzero) digits is 72, while the sum is 16.
The square root of 12612130 is about 3551.3560790211. The cubic root of 12612130 is about 232.7713254362.
Adding to 12612130 its reverse (3121621), we get a palindrome (15733751).
The spelling of 12612130 in words is "twelve million, six hundred twelve thousand, one hundred thirty".
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