Base | Representation |
---|---|
bin | 101110010001… |
… | …100101100100 |
3 | 211211022010201 |
4 | 232101211210 |
5 | 11101140120 |
6 | 1112000244 |
7 | 205052233 |
oct | 56214544 |
9 | 24738121 |
10 | 12130660 |
11 | 6935a43 |
12 | 4090084 |
13 | 2689609 |
14 | 187ab1a |
15 | 10e940a |
hex | b91964 |
12130660 has 24 divisors (see below), whose sum is σ = 26582976. Its totient is φ = 4641120.
The previous prime is 12130649. The next prime is 12130667. The reversal of 12130660 is 6603121.
It is not an unprimeable number, because it can be changed into a prime (12130667) 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, 12726 + ... + 13645.
It is an arithmetic number, because the mean of its divisors is an integer number (1107624).
Almost surely, 212130660 is an apocalyptic number.
12130660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12130660 is an abundant number, since it is smaller than the sum of its proper divisors (14452316).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12130660 is a wasteful number, since it uses less digits than its factorization.
12130660 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 26403 (or 26401 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 19.
The square root of 12130660 is about 3482.9097031074. The cubic root of 12130660 is about 229.7707861382.
Adding to 12130660 its reverse (6603121), we get a palindrome (18733781).
The spelling of 12130660 in words is "twelve million, one hundred thirty thousand, six hundred sixty".
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