| Base | Representation |
|---|---|
| bin | 11010010000000… |
| … | …00010000100100 |
| 3 | 120100100102101101 |
| 4 | 31020000100210 |
| 5 | 422332431040 |
| 6 | 33503405444 |
| 7 | 5312454253 |
| oct | 1510002044 |
| 9 | 510312341 |
| 10 | 220202020 |
| 11 | 103331045 |
| 12 | 618b3884 |
| 13 | 3680b66c |
| 14 | 2136079a |
| 15 | 144ea09a |
| hex | d200424 |
220202020 has 96 divisors (see below), whose sum is σ = 522547200. Its totient is φ = 77451264.
The previous prime is 220201991. The next prime is 220202051. The reversal of 220202020 is 20202022.
It is a super-2 number, since 2×2202020202 = 96977859224160800, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (10).
220202020 is a modest number, since divided by 202020 gives 220 as remainder.
It is a junction number, because it is equal to n+sod(n) for n = 220201988 and 220202006.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 574749 + ... + 575131.
It is an arithmetic number, because the mean of its divisors is an integer number (5443200).
Almost surely, 2220202020 is an apocalyptic number.
220202020 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 220202020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (261273600).
220202020 is an abundant number, since it is smaller than the sum of its proper divisors (302345180).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
220202020 is a wasteful number, since it uses less digits than its factorization.
220202020 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 517 (or 515 counting only the distinct ones).
The product of its (nonzero) digits is 32, while the sum is 10.
The square root of 220202020 is about 14839.2055043388. The cubic root of 220202020 is about 603.8657984374.
Adding to 220202020 its reverse (20202022), we get a palindrome (240404042).
The spelling of 220202020 in words is "two hundred twenty million, two hundred two thousand, twenty".
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