Base | Representation |
---|---|
bin | 111010011011… |
… | …0000010000111 |
3 | 2010122011111022 |
4 | 1310312002013 |
5 | 30320130043 |
6 | 3012301355 |
7 | 521231234 |
oct | 164660207 |
9 | 63564438 |
10 | 30630023 |
11 | 16320876 |
12 | a31185b |
13 | 6465998 |
14 | 40d478b |
15 | 2a50868 |
hex | 1d36087 |
30630023 has 2 divisors, whose sum is σ = 30630024. Its totient is φ = 30630022.
The previous prime is 30630013. The next prime is 30630029. The reversal of 30630023 is 32003603.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 30630023 - 210 = 30628999 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 30629983 and 30630010.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30630029) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15315011 + 15315012.
It is an arithmetic number, because the mean of its divisors is an integer number (15315012).
Almost surely, 230630023 is an apocalyptic number.
30630023 is a deficient number, since it is larger than the sum of its proper divisors (1).
30630023 is an equidigital number, since it uses as much as digits as its factorization.
30630023 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 324, while the sum is 17.
The square root of 30630023 is about 5534.4397187069. The cubic root of 30630023 is about 312.8833414057.
Adding to 30630023 its reverse (32003603), we get a palindrome (62633626).
The spelling of 30630023 in words is "thirty million, six hundred thirty thousand, twenty-three".
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