Base | Representation |
---|---|
bin | 11011111100001101… |
… | …010001110110100000 |
3 | 2212102211102222112212 |
4 | 123330031101312200 |
5 | 442420243040300 |
6 | 21440552341252 |
7 | 2111312336540 |
oct | 337415216640 |
9 | 85384388485 |
10 | 30001143200 |
11 | 117a5954a26 |
12 | 59933a4828 |
13 | 2aa16a5552 |
14 | 1648665320 |
15 | ba8ca2935 |
hex | 6fc351da0 |
30001143200 has 216 divisors, whose sum is σ = 85821444576. Its totient is φ = 10032076800.
The previous prime is 30001143157. The next prime is 30001143209. The reversal of 30001143200 is 234110003.
It is a Harshad number since it is a multiple of its sum of digits (14).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30001143209) by changing a digit.
It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 9412007 + ... + 9415193.
Almost surely, 230001143200 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 30001143200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42910722288).
30001143200 is an abundant number, since it is smaller than the sum of its proper divisors (55820301376).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30001143200 is a wasteful number, since it uses less digits than its factorization.
30001143200 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3296 (or 3242 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 14.
Adding to 30001143200 its reverse (234110003), we get a palindrome (30235253203).
The spelling of 30001143200 in words is "thirty billion, one million, one hundred forty-three thousand, two hundred".
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