Base | Representation |
---|---|
bin | 111001011011… |
… | …1001011010101 |
3 | 2002122202201210 |
4 | 1302313023111 |
5 | 30202013141 |
6 | 2553212033 |
7 | 513635325 |
oct | 162671325 |
9 | 62582653 |
10 | 30110421 |
11 | 15aa6450 |
12 | a101019 |
13 | 6313323 |
14 | 3ddb285 |
15 | 299b916 |
hex | 1cb72d5 |
30110421 has 16 divisors (see below), whose sum is σ = 46103040. Its totient is φ = 17287920.
The previous prime is 30110411. The next prime is 30110453. The reversal of 30110421 is 12401103.
It is a happy number.
It is not a de Polignac number, because 30110421 - 27 = 30110293 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 30110397 and 30110406.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30110411) 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, 23385 + ... + 24638.
It is an arithmetic number, because the mean of its divisors is an integer number (2881440).
Almost surely, 230110421 is an apocalyptic number.
It is an amenable number.
30110421 is a deficient number, since it is larger than the sum of its proper divisors (15992619).
30110421 is a wasteful number, since it uses less digits than its factorization.
30110421 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 48056.
The product of its (nonzero) digits is 24, while the sum is 12.
The square root of 30110421 is about 5487.2963287944. The cubic root of 30110421 is about 311.1040101790.
Adding to 30110421 its reverse (12401103), we get a palindrome (42511524).
The spelling of 30110421 in words is "thirty million, one hundred ten thousand, four hundred twenty-one".
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