Base | Representation |
---|---|
bin | 11100010000000000… |
… | …000011010101111100 |
3 | 2220021222022020120202 |
4 | 130100000003111330 |
5 | 444110301021340 |
6 | 21533534103032 |
7 | 2122454055242 |
oct | 342000032574 |
9 | 86258266522 |
10 | 30333220220 |
11 | 11956348346 |
12 | 5a6664aa78 |
13 | 2b25424824 |
14 | 167a7c8792 |
15 | bc7eeac15 |
hex | 71000357c |
30333220220 has 12 divisors (see below), whose sum is σ = 63699762504. Its totient is φ = 12133288080.
The previous prime is 30333220217. The next prime is 30333220289. The reversal of 30333220220 is 2202233303.
It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 1516661011 = 30333220220 / (3 + 0 + 3 + 3 + 3 + 2 + 2 + 0 + 2 + 2 + 0).
It is a junction number, because it is equal to n+sod(n) for n = 30333220192 and 30333220201.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 758330486 + ... + 758330525.
It is an arithmetic number, because the mean of its divisors is an integer number (5308313542).
Almost surely, 230333220220 is an apocalyptic number.
It is an amenable number.
30333220220 is an abundant number, since it is smaller than the sum of its proper divisors (33366542284).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30333220220 is a wasteful number, since it uses less digits than its factorization.
30333220220 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1516661020 (or 1516661018 counting only the distinct ones).
The product of its (nonzero) digits is 1296, while the sum is 20.
Adding to 30333220220 its reverse (2202233303), we get a palindrome (32535453523).
The spelling of 30333220220 in words is "thirty billion, three hundred thirty-three million, two hundred twenty thousand, two hundred twenty".
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