| Base | Representation |
|---|---|
| bin | 1100010010011010001… |
| … | …0100110011011100100 |
| 3 | 202011212220220012201100 |
| 4 | 3010212202212123210 |
| 5 | 11424313100031040 |
| 6 | 240551125400100 |
| 7 | 21152153260635 |
| oct | 3044642463344 |
| 9 | 664786805640 |
| 10 | 211100002020 |
| 11 | 815884a1a96 |
| 12 | 34ab4b69030 |
| 13 | 16ba2b8b1cb |
| 14 | a30838388c |
| 15 | 5757bb8b30 |
| hex | 31268a66e4 |
211100002020 has 144 divisors (see below), whose sum is σ = 659368120320. Its totient is φ = 54628224768.
The previous prime is 211100002019. The next prime is 211100002021. The reversal of 211100002020 is 20200001112.
It is an interprime number because it is at equal distance from previous prime (211100002019) and next prime (211100002021).
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 = 211100001993 and 211100002011.
It is not an unprimeable number, because it can be changed into a prime (211100002021) 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 47 ways as a sum of consecutive naturals, for example, 2509401 + ... + 2592159.
It is an arithmetic number, because the mean of its divisors is an integer number (4578945280).
Almost surely, 2211100002020 is an apocalyptic number.
211100002020 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 211100002020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (329684060160).
211100002020 is an abundant number, since it is smaller than the sum of its proper divisors (448268118300).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
211100002020 is a wasteful number, since it uses less digits than its factorization.
211100002020 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 83194 (or 83189 counting only the distinct ones).
The product of its (nonzero) digits is 8, while the sum is 9.
Adding to 211100002020 its reverse (20200001112), we get a palindrome (231300003132).
The spelling of 211100002020 in words is "two hundred eleven billion, one hundred million, two thousand, twenty".
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