Base | Representation |
---|---|
bin | 1101101111010010010010… |
… | …11000111011010011100000 |
3 | 10221222020112101212022111002 |
4 | 12313221021120323103200 |
5 | 12424443214443344300 |
6 | 144131114320211132 |
7 | 6235514204204060 |
oct | 667511130732340 |
9 | 127866471768432 |
10 | 30212031231200 |
11 | 969893a005335 |
12 | 347b364169aa8 |
13 | 13b1ca0209430 |
14 | 7663ad2993a0 |
15 | 375d3e5dc5d5 |
hex | 1b7a4963b4e0 |
30212031231200 has 288 divisors, whose sum is σ = 90828054757440. Its totient is φ = 9556077772800.
The previous prime is 30212031231163. The next prime is 30212031231229. The reversal of 30212031231200 is 213213021203.
It is a super-2 number, since 2×302120312312002 (a number of 28 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (20).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 126625616 + ... + 126863984.
It is an arithmetic number, because the mean of its divisors is an integer number (315375190130).
Almost surely, 230212031231200 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30212031231200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45414027378720).
30212031231200 is an abundant number, since it is smaller than the sum of its proper divisors (60616023526240).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30212031231200 is a wasteful number, since it uses less digits than its factorization.
30212031231200 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 240150 (or 240137 counting only the distinct ones).
The product of its (nonzero) digits is 432, while the sum is 20.
Adding to 30212031231200 its reverse (213213021203), we get a palindrome (30425244252403).
The spelling of 30212031231200 in words is "thirty trillion, two hundred twelve billion, thirty-one million, two hundred thirty-one thousand, two hundred".
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