| Base | Representation |
|---|---|
| bin | 11100001000001000… |
| … | …100001010100010100 |
| 3 | 2212221202221001122100 |
| 4 | 130020020201110110 |
| 5 | 443323003104140 |
| 6 | 21512501002100 |
| 7 | 2116262104065 |
| oct | 341010412424 |
| 9 | 85852831570 |
| 10 | 30201222420 |
| 11 | 11898891456 |
| 12 | 5a2a3b3330 |
| 13 | 2b03c89915 |
| 14 | 166706856c |
| 15 | bbb625530 |
| hex | 708221514 |
30201222420 has 144 divisors (see below), whose sum is σ = 92343888000. Its totient is φ = 7989397248.
The previous prime is 30201222413. The next prime is 30201222439. The reversal of 30201222420 is 2422210203.
30201222420 is a `hidden beast` number, since 3 + 0 + 20 + 1 + 222 + 420 = 666.
It is a super-2 number, since 2×302012224202 (a number of 22 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 30201222393 and 30201222402.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20146831 + ... + 20148329.
It is an arithmetic number, because the mean of its divisors is an integer number (641277000).
Almost surely, 230201222420 is an apocalyptic number.
30201222420 is a gapful number since it is divisible by the number (30) 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 30201222420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46171944000).
30201222420 is an abundant number, since it is smaller than the sum of its proper divisors (62142665580).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30201222420 is a wasteful number, since it uses less digits than its factorization.
30201222420 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2334 (or 2329 counting only the distinct ones).
The product of its (nonzero) digits is 384, while the sum is 18.
Adding to 30201222420 its reverse (2422210203), we get a palindrome (32623432623).
The spelling of 30201222420 in words is "thirty billion, two hundred one million, two hundred twenty-two thousand, four hundred twenty".
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