Base | Representation |
---|---|
bin | 11100001111111100… |
… | …001101011101011001 |
3 | 2220021220102002001022 |
4 | 130033330031131121 |
5 | 444110021304311 |
6 | 21533500332225 |
7 | 2122442362052 |
oct | 341774153531 |
9 | 86256362038 |
10 | 30332213081 |
11 | 1195581a6a5 |
12 | 5a66244075 |
13 | 2b251612a1 |
14 | 167a605729 |
15 | bc7d9c5db |
hex | 70ff0d759 |
30332213081 has 2 divisors, whose sum is σ = 30332213082. Its totient is φ = 30332213080.
The previous prime is 30332213053. The next prime is 30332213083. The reversal of 30332213081 is 18031223303.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 22035918025 + 8296295056 = 148445^2 + 91084^2 .
It is a cyclic number.
It is not a de Polignac number, because 30332213081 - 226 = 30265104217 is a prime.
It is a super-2 number, since 2×303322130812 (a number of 22 digits) contains 22 as substring.
Together with 30332213083, it forms a pair of twin primes.
It is a Chen prime.
It is a self number, because there is not a number n which added to its sum of digits gives 30332213081.
It is not a weakly prime, because it can be changed into another prime (30332213083) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15166106540 + 15166106541.
It is an arithmetic number, because the mean of its divisors is an integer number (15166106541).
Almost surely, 230332213081 is an apocalyptic number.
It is an amenable number.
30332213081 is a deficient number, since it is larger than the sum of its proper divisors (1).
30332213081 is an equidigital number, since it uses as much as digits as its factorization.
30332213081 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 2592, while the sum is 26.
Adding to 30332213081 its reverse (18031223303), we get a palindrome (48363436384).
The spelling of 30332213081 in words is "thirty billion, three hundred thirty-two million, two hundred thirteen thousand, eighty-one".
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