| Base | Representation |
|---|---|
| bin | 1011110000111011000… |
| … | …0010100010011100100 |
| 3 | 201022200110112002211201 |
| 4 | 2330032300110103210 |
| 5 | 11302410404310040 |
| 6 | 232503140212244 |
| 7 | 20413333145113 |
| oct | 2741660242344 |
| 9 | 638613462751 |
| 10 | 202111010020 |
| 11 | 7879543a287 |
| 12 | 3320669a084 |
| 13 | 1609c79352a |
| 14 | 9ad45d5c7a |
| 15 | 53cd963a9a |
| hex | 2f0ec144e4 |
202111010020 has 96 divisors (see below), whose sum is σ = 451934824320. Its totient is φ = 75706306560.
The previous prime is 202111009979. The next prime is 202111010027. The reversal of 202111010020 is 20010111202.
202111010020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
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 = 202111009979 and 202111010006.
It is not an unprimeable number, because it can be changed into a prime (202111010027) 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 31 ways as a sum of consecutive naturals, for example, 34682347 + ... + 34688173.
It is an arithmetic number, because the mean of its divisors is an integer number (4707654420).
Almost surely, 2202111010020 is an apocalyptic number.
202111010020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 202111010020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (225967412160).
202111010020 is an abundant number, since it is smaller than the sum of its proper divisors (249823814300).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
202111010020 is a wasteful number, since it uses less digits than its factorization.
202111010020 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6893 (or 6891 counting only the distinct ones).
The product of its (nonzero) digits is 8, while the sum is 10.
Adding to 202111010020 its reverse (20010111202), we get a palindrome (222121121222).
The spelling of 202111010020 in words is "two hundred two billion, one hundred eleven million, ten thousand, twenty".
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