Base | Representation |
---|---|
bin | 11011111100111010… |
… | …100101111110110011 |
3 | 2212110122210111101021 |
4 | 123330322211332303 |
5 | 442431313202011 |
6 | 21442055120311 |
7 | 2111515323151 |
oct | 337472457663 |
9 | 85418714337 |
10 | 30013022131 |
11 | 11801628824 |
12 | 5997373097 |
13 | 2aa3ca43c1 |
14 | 164a0783d1 |
15 | ba9d4c471 |
hex | 6fcea5fb3 |
30013022131 has 4 divisors (see below), whose sum is σ = 30023530072. Its totient is φ = 30002514192.
The previous prime is 30013022107. The next prime is 30013022141. The reversal of 30013022131 is 13122031003.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 30013022131 - 223 = 30004633523 is a prime.
It is a super-2 number, since 2×300130221312 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30013022141) 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, 5249685 + ... + 5255398.
It is an arithmetic number, because the mean of its divisors is an integer number (7505882518).
Almost surely, 230013022131 is an apocalyptic number.
30013022131 is a deficient number, since it is larger than the sum of its proper divisors (10507941).
30013022131 is a wasteful number, since it uses less digits than its factorization.
30013022131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10507940.
The product of its (nonzero) digits is 108, while the sum is 16.
Adding to 30013022131 its reverse (13122031003), we get a palindrome (43135053134).
The spelling of 30013022131 in words is "thirty billion, thirteen million, twenty-two thousand, one hundred thirty-one".
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