Base | Representation |
---|---|
bin | 111010110000… |
… | …0010111100011 |
3 | 2010221222100200 |
4 | 1311200113203 |
5 | 30341202202 |
6 | 3020120243 |
7 | 522552624 |
oct | 165402743 |
9 | 63858320 |
10 | 30803427 |
11 | 1642a086 |
12 | a396083 |
13 | 64c68a5 |
14 | 413ba4b |
15 | 2a86e1c |
hex | 1d605e3 |
30803427 has 12 divisors (see below), whose sum is σ = 46835880. Its totient is φ = 19454688.
The previous prime is 30803413. The next prime is 30803431. The reversal of 30803427 is 72430803.
It is not a de Polignac number, because 30803427 - 26 = 30803363 is a prime.
It is a super-2 number, since 2×308034272 = 1897702229888658, 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 30803427.
It is not an unprimeable number, because it can be changed into a prime (30803327) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89898 + ... + 90239.
It is an arithmetic number, because the mean of its divisors is an integer number (3902990).
Almost surely, 230803427 is an apocalyptic number.
30803427 is a deficient number, since it is larger than the sum of its proper divisors (16032453).
30803427 is a wasteful number, since it uses less digits than its factorization.
30803427 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 180162 (or 180159 counting only the distinct ones).
The product of its (nonzero) digits is 4032, while the sum is 27.
The square root of 30803427 is about 5550.0835128852. The cubic root of 30803427 is about 313.4726668935.
The spelling of 30803427 in words is "thirty million, eight hundred three thousand, four hundred twenty-seven".
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