| Base | Representation |
|---|---|
| bin | 1011101110011000101… |
| … | …1010100011001010100 |
| 3 | 201020221000111111211011 |
| 4 | 2323212023110121110 |
| 5 | 11300012114104140 |
| 6 | 232311420422004 |
| 7 | 20360425432450 |
| oct | 2734613243124 |
| 9 | 636830444734 |
| 10 | 201430222420 |
| 11 | 784761224a9 |
| 12 | 330566a7904 |
| 13 | 15cc171cc2b |
| 14 | 9a6c01d660 |
| 15 | 538dcd8cea |
| hex | 2ee62d4654 |
201430222420 has 96 divisors (see below), whose sum is σ = 489906321408. Its totient is φ = 68142477312.
The previous prime is 201430222351. The next prime is 201430222423. The reversal of 201430222420 is 24222034102.
201430222420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a junction number, because it is equal to n+sod(n) for n = 201430222391 and 201430222400.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (201430222423) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3499312 + ... + 3556408.
It is an arithmetic number, because the mean of its divisors is an integer number (5103190848).
Almost surely, 2201430222420 is an apocalyptic number.
201430222420 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 201430222420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (244953160704).
201430222420 is an abundant number, since it is smaller than the sum of its proper divisors (288476098988).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
201430222420 is a wasteful number, since it uses less digits than its factorization.
201430222420 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 57449 (or 57447 counting only the distinct ones).
The product of its (nonzero) digits is 1536, while the sum is 22.
Adding to 201430222420 its reverse (24222034102), we get a palindrome (225652256522).
The spelling of 201430222420 in words is "two hundred one billion, four hundred thirty million, two hundred twenty-two thousand, four hundred twenty".
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