Base | Representation |
---|---|
bin | 11011111100001001… |
… | …101100000111110111 |
3 | 2212102202200011210011 |
4 | 123330021230013313 |
5 | 442420022432411 |
6 | 21440520241051 |
7 | 2111301340306 |
oct | 337411540767 |
9 | 85382604704 |
10 | 30000202231 |
11 | 117a5371a6a |
12 | 5993010187 |
13 | 2aa143616c |
14 | 164849c43d |
15 | ba8b68c21 |
hex | 6fc26c1f7 |
30000202231 has 2 divisors, whose sum is σ = 30000202232. Its totient is φ = 30000202230.
The previous prime is 30000202213. The next prime is 30000202279. The reversal of 30000202231 is 13220200003.
It is a happy number.
Together with previous prime (30000202213) it forms an Ormiston pair, because they use the same digits, order apart.
It is a weak prime.
It is an emirp because it is prime and its reverse (13220200003) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 30000202231 - 27 = 30000202103 is a prime.
It is a super-2 number, since 2×300002022312 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30000202201) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15000101115 + 15000101116.
It is an arithmetic number, because the mean of its divisors is an integer number (15000101116).
Almost surely, 230000202231 is an apocalyptic number.
30000202231 is a deficient number, since it is larger than the sum of its proper divisors (1).
30000202231 is an equidigital number, since it uses as much as digits as its factorization.
30000202231 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 72, while the sum is 13.
Adding to 30000202231 its reverse (13220200003), we get a palindrome (43220402234).
The spelling of 30000202231 in words is "thirty billion, two hundred two thousand, two hundred thirty-one".
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