Base | Representation |
---|---|
bin | 111001010001… |
… | …1001000011001 |
3 | 2002111121002202 |
4 | 1302203020121 |
5 | 30141401223 |
6 | 2551335545 |
7 | 513144050 |
oct | 162431031 |
9 | 62447082 |
10 | 30028313 |
11 | 15a4a797 |
12 | a0815b5 |
13 | 62b4b43 |
14 | 3db9397 |
15 | 2982428 |
hex | 1ca3219 |
30028313 has 8 divisors (see below), whose sum is σ = 34546560. Its totient is φ = 25567200.
The previous prime is 30028289. The next prime is 30028337. The reversal of 30028313 is 31382003.
It is an interprime number because it is at equal distance from previous prime (30028289) and next prime (30028337).
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 30028313 - 26 = 30028249 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (30028343) 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 in 7 ways as a sum of consecutive naturals, for example, 13148 + ... + 15261.
It is an arithmetic number, because the mean of its divisors is an integer number (4318320).
Almost surely, 230028313 is an apocalyptic number.
It is an amenable number.
30028313 is a deficient number, since it is larger than the sum of its proper divisors (4518247).
30028313 is a wasteful number, since it uses less digits than its factorization.
30028313 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 28567.
The product of its (nonzero) digits is 432, while the sum is 20.
The square root of 30028313 is about 5479.8095769835. The cubic root of 30028313 is about 310.8209699426.
The spelling of 30028313 in words is "thirty million, twenty-eight thousand, three hundred thirteen".
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