Base | Representation |
---|---|
bin | 11100001001111010… |
… | …100111110000011101 |
3 | 2220000212012200112111 |
4 | 130021322213300131 |
5 | 443403132230323 |
6 | 21515450034021 |
7 | 2120104251421 |
oct | 341172476035 |
9 | 86025180474 |
10 | 30231133213 |
11 | 11903760916 |
12 | 5a38418911 |
13 | 2b0a230108 |
14 | 166b012b81 |
15 | bbe082c0d |
hex | 709ea7c1d |
30231133213 has 16 divisors (see below), whose sum is σ = 30847703040. Its totient is φ = 29622753216.
The previous prime is 30231133189. The next prime is 30231133237. The reversal of 30231133213 is 31233113203.
It is an interprime number because it is at equal distance from previous prime (30231133189) and next prime (30231133237).
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-30231133213 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30231133913) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3473295 + ... + 3481987.
It is an arithmetic number, because the mean of its divisors is an integer number (1927981440).
Almost surely, 230231133213 is an apocalyptic number.
It is an amenable number.
30231133213 is a deficient number, since it is larger than the sum of its proper divisors (616569827).
30231133213 is a wasteful number, since it uses less digits than its factorization.
30231133213 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9156.
The product of its (nonzero) digits is 972, while the sum is 22.
Adding to 30231133213 its reverse (31233113203), we get a palindrome (61464246416).
The spelling of 30231133213 in words is "thirty billion, two hundred thirty-one million, one hundred thirty-three thousand, two hundred thirteen".
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