Base | Representation |
---|---|
bin | 111001010100… |
… | …1001000000111 |
3 | 2002112211210022 |
4 | 1302221020013 |
5 | 30143142441 |
6 | 2552045355 |
7 | 513305462 |
oct | 162511007 |
9 | 62484708 |
10 | 30052871 |
11 | 15a67192 |
12 | a09385b |
13 | 62c3084 |
14 | 3dc42d9 |
15 | 298984b |
hex | 1ca9207 |
30052871 has 2 divisors, whose sum is σ = 30052872. Its totient is φ = 30052870.
The previous prime is 30052849. The next prime is 30052901. The reversal of 30052871 is 17825003.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 30052871 - 26 = 30052807 is a prime.
It is a Sophie Germain prime.
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 30052871.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30052811) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15026435 + 15026436.
It is an arithmetic number, because the mean of its divisors is an integer number (15026436).
Almost surely, 230052871 is an apocalyptic number.
30052871 is a deficient number, since it is larger than the sum of its proper divisors (1).
30052871 is an equidigital number, since it uses as much as digits as its factorization.
30052871 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 1680, while the sum is 26.
The square root of 30052871 is about 5482.0498903239. The cubic root of 30052871 is about 310.9056795682.
Adding to 30052871 its reverse (17825003), we get a palindrome (47877874).
The spelling of 30052871 in words is "thirty million, fifty-two thousand, eight hundred seventy-one".
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