Base | Representation |
---|---|
bin | 111001011100… |
… | …1100100010110 |
3 | 2002200021011111 |
4 | 1302321210112 |
5 | 30202321324 |
6 | 2553325234 |
7 | 514006015 |
oct | 162714426 |
9 | 62607144 |
10 | 30120214 |
11 | 16002843 |
12 | a10681a |
13 | 6317917 |
14 | 4000a7c |
15 | 299e794 |
hex | 1cb9916 |
30120214 has 16 divisors (see below), whose sum is σ = 46157760. Its totient is φ = 14736960.
The previous prime is 30120203. The next prime is 30120217. The reversal of 30120214 is 41202103.
It is a junction number, because it is equal to n+sod(n) for n = 30120194 and 30120203.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30120217) 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 7 ways as a sum of consecutive naturals, for example, 28642 + ... + 29674.
It is an arithmetic number, because the mean of its divisors is an integer number (2884860).
Almost surely, 230120214 is an apocalyptic number.
30120214 is a deficient number, since it is larger than the sum of its proper divisors (16037546).
30120214 is a wasteful number, since it uses less digits than its factorization.
30120214 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1335.
The product of its (nonzero) digits is 48, while the sum is 13.
The square root of 30120214 is about 5488.1885900541. The cubic root of 30120214 is about 311.1377339557.
Adding to 30120214 its reverse (41202103), we get a palindrome (71322317).
The spelling of 30120214 in words is "thirty million, one hundred twenty thousand, two hundred fourteen".
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