Base | Representation |
---|---|
bin | 10110110001111101… |
… | …00011001010101100 |
3 | 1011120100022001101220 |
4 | 23120332203022230 |
5 | 200021413211340 |
6 | 5341331503340 |
7 | 612035033364 |
oct | 133076431254 |
9 | 34510261356 |
10 | 12230210220 |
11 | 52066a8a58 |
12 | 2453a57b50 |
13 | 11cba686a7 |
14 | 8404259a4 |
15 | 4b8a95ed0 |
hex | 2d8fa32ac |
12230210220 has 24 divisors (see below), whose sum is σ = 34244588784. Its totient is φ = 3261389376.
The previous prime is 12230210207. The next prime is 12230210221. The reversal of 12230210220 is 2201203221.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a self number, because there is not a number n which added to its sum of digits gives 12230210220.
It is not an unprimeable number, because it can be changed into a prime (12230210221) 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, 101918359 + ... + 101918478.
It is an arithmetic number, because the mean of its divisors is an integer number (1426857866).
Almost surely, 212230210220 is an apocalyptic number.
12230210220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12230210220 is an abundant number, since it is smaller than the sum of its proper divisors (22014378564).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12230210220 is a wasteful number, since it uses less digits than its factorization.
12230210220 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 203836849 (or 203836847 counting only the distinct ones).
The product of its (nonzero) digits is 96, while the sum is 15.
Adding to 12230210220 its reverse (2201203221), we get a palindrome (14431413441).
The spelling of 12230210220 in words is "twelve billion, two hundred thirty million, two hundred ten thousand, two hundred twenty".
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