Base | Representation |
---|---|
bin | 10010110101001101… |
… | …001011011100001100 |
3 | 1221012011111102112100 |
4 | 102311031023130030 |
5 | 312402310000022 |
6 | 13142224435100 |
7 | 1314033110232 |
oct | 226515133414 |
9 | 57164442470 |
10 | 20220000012 |
11 | 8636732313 |
12 | 3b03778a90 |
13 | 1ba3145364 |
14 | d9b5d2952 |
15 | 7d52261ac |
hex | 4b534b70c |
20220000012 has 36 divisors (see below), whose sum is σ = 52358296536. Its totient is φ = 6575609280.
The previous prime is 20219999999. The next prime is 20220000079. The reversal of 20220000012 is 21000002202.
It is a tau number, because it is divible by the number of its divisors (36).
It is a Harshad number since it is a multiple of its sum of digits (9).
It is a junction number, because it is equal to n+sod(n) for n = 20219999949 and 20220000003.
It is an unprimeable number.
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 11 ways as a sum of consecutive naturals, for example, 6848118 + ... + 6851069.
It is an arithmetic number, because the mean of its divisors is an integer number (1454397126).
Almost surely, 220220000012 is an apocalyptic number.
It is an amenable number.
20220000012 is an abundant number, since it is smaller than the sum of its proper divisors (32138296524).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20220000012 is a wasteful number, since it uses less digits than its factorization.
20220000012 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13699238 (or 13699233 counting only the distinct ones).
The product of its (nonzero) digits is 16, while the sum is 9.
Adding to 20220000012 its reverse (21000002202), we get a palindrome (41220002214).
The spelling of 20220000012 in words is "twenty billion, two hundred twenty million, twelve", and thus it is an aban number.
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