| Base | Representation |
|---|---|
| bin | 11100001001010100… |
| … | …011110010011100110 |
| 3 | 2220000011101121212100 |
| 4 | 130021110132103212 |
| 5 | 443343102224110 |
| 6 | 21514451432530 |
| 7 | 2116623251364 |
| oct | 341124362346 |
| 9 | 86004347770 |
| 10 | 30221133030 |
| 11 | 118a9050600 |
| 12 | 5a34bb5746 |
| 13 | 2b0813b44a |
| 14 | 166996c634 |
| 15 | bbd259bc0 |
| hex | 70951e4e6 |
30221133030 has 144 divisors (see below), whose sum is σ = 86480568720. Its totient is φ = 7316749440.
The previous prime is 30221133017. The next prime is 30221133083. The reversal of 30221133030 is 3033112203.
30221133030 is a `hidden beast` number, since 302 + 2 + 1 + 1 + 330 + 30 = 666.
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 = 30221132994 and 30221133012.
It is a congruent number.
It is an unprimeable number.
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 71 ways as a sum of consecutive naturals, for example, 11901501 + ... + 11904039.
It is an arithmetic number, because the mean of its divisors is an integer number (600559505).
Almost surely, 230221133030 is an apocalyptic number.
30221133030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 30221133030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43240284360).
30221133030 is an abundant number, since it is smaller than the sum of its proper divisors (56259435690).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30221133030 is a wasteful number, since it uses less digits than its factorization.
30221133030 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3667 (or 3653 counting only the distinct ones).
The product of its (nonzero) digits is 324, while the sum is 18.
Adding to 30221133030 its reverse (3033112203), we get a palindrome (33254245233).
It can be divided in two parts, 302211 and 33030, that added together give a square (335241 = 5792).
The spelling of 30221133030 in words is "thirty billion, two hundred twenty-one million, one hundred thirty-three thousand, thirty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •