Base | Representation |
---|---|
bin | 10110110001111011… |
… | …01111110110010100 |
3 | 1011120022220101001201 |
4 | 23120331233312110 |
5 | 200021340000040 |
6 | 5341323202244 |
7 | 612033166510 |
oct | 133075576624 |
9 | 34508811051 |
10 | 12230000020 |
11 | 5206575037 |
12 | 2453976384 |
13 | 11cb9c3b04 |
14 | 8403ad140 |
15 | 4b8a53a9a |
hex | 2d8f6fd94 |
12230000020 has 48 divisors (see below), whose sum is σ = 29436220800. Its totient is φ = 4181111424.
The previous prime is 12229999997. The next prime is 12230000071. The reversal of 12230000020 is 2000003221.
It is a Harshad number since it is a multiple of its sum of digits (10).
It is a junction number, because it is equal to n+sod(n) for n = 12229999961 and 12230000006.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76294 + ... + 174013.
It is an arithmetic number, because the mean of its divisors is an integer number (613254600).
Almost surely, 212230000020 is an apocalyptic number.
12230000020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12230000020 is an abundant number, since it is smaller than the sum of its proper divisors (17206220780).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12230000020 is a wasteful number, since it uses less digits than its factorization.
12230000020 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 250672 (or 250670 counting only the distinct ones).
The product of its (nonzero) digits is 24, while the sum is 10.
Adding to 12230000020 its reverse (2000003221), we get a palindrome (14230003241).
It can be divided in two parts, 12 and 230000020, that added together give a palindrome (230000032).
The spelling of 12230000020 in words is "twelve billion, two hundred thirty million, twenty", and thus it is an aban number.
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