Base | Representation |
---|---|
bin | 111001010100… |
… | …0111011110001 |
3 | 2002112210201001 |
4 | 1302220323301 |
5 | 30143131311 |
6 | 2552042001 |
7 | 513303253 |
oct | 162507361 |
9 | 62483631 |
10 | 30052081 |
11 | 15a66634 |
12 | a093301 |
13 | 62c28c7 |
14 | 3dc3cd3 |
15 | 29894c1 |
hex | 1ca8ef1 |
30052081 has 2 divisors, whose sum is σ = 30052082. Its totient is φ = 30052080.
The previous prime is 30052049. The next prime is 30052111. The reversal of 30052081 is 18025003.
It is a happy number.
30052081 is nontrivially palindromic in base 14.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 26214400 + 3837681 = 5120^2 + 1959^2 .
It is a cyclic number.
It is not a de Polignac number, because 30052081 - 25 = 30052049 is a prime.
It is a super-2 number, since 2×300520812 = 1806255144861122, which contains 22 as substring.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (30052021) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15026040 + 15026041.
It is an arithmetic number, because the mean of its divisors is an integer number (15026041).
Almost surely, 230052081 is an apocalyptic number.
It is an amenable number.
30052081 is a deficient number, since it is larger than the sum of its proper divisors (1).
30052081 is an equidigital number, since it uses as much as digits as its factorization.
30052081 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 240, while the sum is 19.
The square root of 30052081 is about 5481.9778365112. The cubic root of 30052081 is about 310.9029552845.
Adding to 30052081 its reverse (18025003), we get a palindrome (48077084).
The spelling of 30052081 in words is "thirty million, fifty-two thousand, eighty-one".
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