Base | Representation |
---|---|
bin | 111001100111… |
… | …0010100011110 |
3 | 2002211120202122 |
4 | 1303032110132 |
5 | 30213031324 |
6 | 2555222542 |
7 | 514511564 |
oct | 163162436 |
9 | 62746678 |
10 | 30205214 |
11 | 16060696 |
12 | a147a52 |
13 | 6347510 |
14 | 4023a34 |
15 | 29b9a5e |
hex | 1cce51e |
30205214 has 16 divisors (see below), whose sum is σ = 48923952. Its totient is φ = 13903488.
The previous prime is 30205213. The next prime is 30205229. The reversal of 30205214 is 41250203.
It is a junction number, because it is equal to n+sod(n) for n = 30205192 and 30205201.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30205213) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9917 + ... + 12599.
It is an arithmetic number, because the mean of its divisors is an integer number (3057747).
Almost surely, 230205214 is an apocalyptic number.
30205214 is a deficient number, since it is larger than the sum of its proper divisors (18718738).
30205214 is a wasteful number, since it uses less digits than its factorization.
30205214 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3131.
The product of its (nonzero) digits is 240, while the sum is 17.
The square root of 30205214 is about 5495.9270373614. The cubic root of 30205214 is about 311.4301385687.
Adding to 30205214 its reverse (41250203), we get a palindrome (71455417).
The spelling of 30205214 in words is "thirty million, two hundred five thousand, two hundred fourteen".
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