Base | Representation |
---|---|
bin | 10010110101010100… |
… | …110110011101010100 |
3 | 1221012022021121101112 |
4 | 102311110312131110 |
5 | 312403313324340 |
6 | 13142335514152 |
7 | 1314056154635 |
oct | 226524663524 |
9 | 57168247345 |
10 | 20222011220 |
11 | 8637886374 |
12 | 3b04388958 |
13 | 1ba369a918 |
14 | d9b99788c |
15 | 7d54c2065 |
hex | 4b5536754 |
20222011220 has 48 divisors (see below), whose sum is σ = 44727936960. Its totient is φ = 7658509824.
The previous prime is 20222011169. The next prime is 20222011223. The reversal of 20222011220 is 2211022202.
It is a junction number, because it is equal to n+sod(n) for n = 20222011195 and 20222011204.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20222011223) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 660287 + ... + 690233.
It is an arithmetic number, because the mean of its divisors is an integer number (931832020).
Almost surely, 220222011220 is an apocalyptic number.
20222011220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
20222011220 is an abundant number, since it is smaller than the sum of its proper divisors (24505925740).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20222011220 is a wasteful number, since it uses less digits than its factorization.
20222011220 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 31752 (or 31750 counting only the distinct ones).
The product of its (nonzero) digits is 64, while the sum is 14.
Adding to 20222011220 its reverse (2211022202), we get a palindrome (22433033422).
The spelling of 20222011220 in words is "twenty billion, two hundred twenty-two million, eleven thousand, two hundred twenty".
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