Base | Representation |
---|---|
bin | 111010110001… |
… | …1000000111111 |
3 | 2010222112020022 |
4 | 1311203000333 |
5 | 30342024041 |
6 | 3020242355 |
7 | 522626345 |
oct | 165430077 |
9 | 63875208 |
10 | 30814271 |
11 | 16437244 |
12 | a3a03bb |
13 | 64cb7c7 |
14 | 4141995 |
15 | 2a8a24b |
hex | 1d6303f |
30814271 has 2 divisors, whose sum is σ = 30814272. Its totient is φ = 30814270.
The previous prime is 30814261. The next prime is 30814297. The reversal of 30814271 is 17241803.
It is an a-pointer prime, because the next prime (30814297) can be obtained adding 30814271 to its sum of digits (26).
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 30814271 - 26 = 30814207 is a prime.
It is a super-2 number, since 2×308142712 = 1899038594522882, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 30814271.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30814261) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15407135 + 15407136.
It is an arithmetic number, because the mean of its divisors is an integer number (15407136).
Almost surely, 230814271 is an apocalyptic number.
30814271 is a deficient number, since it is larger than the sum of its proper divisors (1).
30814271 is an equidigital number, since it uses as much as digits as its factorization.
30814271 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1344, while the sum is 26.
The square root of 30814271 is about 5551.0603491585. The cubic root of 30814271 is about 313.5094474199.
The spelling of 30814271 in words is "thirty million, eight hundred fourteen thousand, two hundred seventy-one".
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