Base | Representation |
---|---|
bin | 11011111110001000… |
… | …011111001000000001 |
3 | 2212112002012220012002 |
4 | 123332020133020001 |
5 | 443002030110111 |
6 | 21444104513345 |
7 | 2112154016204 |
oct | 337610371001 |
9 | 85462186162 |
10 | 30033441281 |
11 | 11812104a58 |
12 | 59a217b855 |
13 | 2aa82a353c |
14 | 164ca7193b |
15 | baba3263b |
hex | 6fe21f201 |
30033441281 has 2 divisors, whose sum is σ = 30033441282. Its totient is φ = 30033441280.
The previous prime is 30033441253. The next prime is 30033441313. The reversal of 30033441281 is 18214433003.
It is a happy number.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 27902695681 + 2130745600 = 167041^2 + 46160^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-30033441281 is a prime.
It is a super-2 number, since 2×300334412812 (a number of 22 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (30033441211) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15016720640 + 15016720641.
It is an arithmetic number, because the mean of its divisors is an integer number (15016720641).
Almost surely, 230033441281 is an apocalyptic number.
It is an amenable number.
30033441281 is a deficient number, since it is larger than the sum of its proper divisors (1).
30033441281 is an equidigital number, since it uses as much as digits as its factorization.
30033441281 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 6912, while the sum is 29.
Adding to 30033441281 its reverse (18214433003), we get a palindrome (48247874284).
The spelling of 30033441281 in words is "thirty billion, thirty-three million, four hundred forty-one thousand, two hundred eighty-one".
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