Base | Representation |
---|---|
bin | 11011111100001101… |
… | …111011010110111101 |
3 | 2212102211202121202122 |
4 | 123330031323112331 |
5 | 442420314010323 |
6 | 21441000132325 |
7 | 2111313645314 |
oct | 337415732675 |
9 | 85384677678 |
10 | 30001313213 |
11 | 117a5a60733 |
12 | 59934670a5 |
13 | 2aa1734a51 |
14 | 16486ab27b |
15 | ba8cd7ec8 |
hex | 6fc37b5bd |
30001313213 has 4 divisors (see below), whose sum is σ = 30012229500. Its totient is φ = 29990396928.
The previous prime is 30001313201. The next prime is 30001313299. The reversal of 30001313213 is 31231310003.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 17015115364 + 12986197849 = 130442^2 + 113957^2 .
It is a cyclic number.
It is not a de Polignac number, because 30001313213 - 26 = 30001313149 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30001313191 and 30001313200.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30001313113) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5454020 + ... + 5459517.
It is an arithmetic number, because the mean of its divisors is an integer number (7503057375).
Almost surely, 230001313213 is an apocalyptic number.
It is an amenable number.
30001313213 is a deficient number, since it is larger than the sum of its proper divisors (10916287).
30001313213 is a wasteful number, since it uses less digits than its factorization.
30001313213 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10916286.
The product of its (nonzero) digits is 162, while the sum is 17.
Adding to 30001313213 its reverse (31231310003), we get a palindrome (61232623216).
The spelling of 30001313213 in words is "thirty billion, one million, three hundred thirteen thousand, two hundred thirteen".
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