Base | Representation |
---|---|
bin | 10110110001010110… |
… | …10111101001001000 |
3 | 1011112222211121100220 |
4 | 23120223113221020 |
5 | 200014121313110 |
6 | 5341032030040 |
7 | 611644222563 |
oct | 133053275110 |
9 | 34488747326 |
10 | 12225182280 |
11 | 5203884433 |
12 | 2452232320 |
13 | 11ca9c7c8c |
14 | 83d8b74da |
15 | 4b8401370 |
hex | 2d8ad7a48 |
12225182280 has 64 divisors (see below), whose sum is σ = 37018347840. Its totient is φ = 3229577472.
The previous prime is 12225182251. The next prime is 12225182287. The reversal of 12225182280 is 8228152221.
12225182280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not an unprimeable number, because it can be changed into a prime (12225182287) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 463219 + ... + 488898.
It is an arithmetic number, because the mean of its divisors is an integer number (578411685).
Almost surely, 212225182280 is an apocalyptic number.
12225182280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12225182280 is an abundant number, since it is smaller than the sum of its proper divisors (24793165560).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12225182280 is a wasteful number, since it uses less digits than its factorization.
12225182280 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 952238 (or 952234 counting only the distinct ones).
The product of its (nonzero) digits is 10240, while the sum is 33.
The spelling of 12225182280 in words is "twelve billion, two hundred twenty-five million, one hundred eighty-two thousand, two hundred eighty".
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