Base | Representation |
---|---|
bin | 111001101101… |
… | …0010000101001 |
3 | 2002221001212000 |
4 | 1303122100221 |
5 | 30221112441 |
6 | 3000241213 |
7 | 515104302 |
oct | 163322051 |
9 | 62831760 |
10 | 30254121 |
11 | 16094407 |
12 | a170209 |
13 | 6363861 |
14 | 40377a9 |
15 | 29c92b6 |
hex | 1cda429 |
30254121 has 16 divisors (see below), whose sum is σ = 45153600. Its totient is φ = 20019744.
The previous prime is 30254113. The next prime is 30254129. The reversal of 30254121 is 12145203.
It is an interprime number because it is at equal distance from previous prime (30254113) and next prime (30254129).
It is not a de Polignac number, because 30254121 - 23 = 30254113 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 30254094 and 30254103.
It is not an unprimeable number, because it can be changed into a prime (30254129) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 391 + ... + 7788.
It is an arithmetic number, because the mean of its divisors is an integer number (2822100).
Almost surely, 230254121 is an apocalyptic number.
It is an amenable number.
30254121 is a deficient number, since it is larger than the sum of its proper divisors (14899479).
30254121 is a wasteful number, since it uses less digits than its factorization.
30254121 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8325 (or 8319 counting only the distinct ones).
The product of its (nonzero) digits is 240, while the sum is 18.
The square root of 30254121 is about 5500.3746236052. The cubic root of 30254121 is about 311.5981327507.
Adding to 30254121 its reverse (12145203), we get a palindrome (42399324).
The spelling of 30254121 in words is "thirty million, two hundred fifty-four thousand, one hundred twenty-one".
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