Base | Representation |
---|---|
bin | 111010011011… |
… | …0000001110101 |
3 | 2010122011110122 |
4 | 1310312001311 |
5 | 30320130010 |
6 | 3012301325 |
7 | 521231210 |
oct | 164660165 |
9 | 63564418 |
10 | 30630005 |
11 | 1632085a |
12 | a311845 |
13 | 6465983 |
14 | 40d4777 |
15 | 2a50855 |
hex | 1d36075 |
30630005 has 16 divisors (see below), whose sum is σ = 44478720. Its totient is φ = 19767552.
The previous prime is 30629999. The next prime is 30630011. The reversal of 30630005 is 50003603.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (30629999) and next prime (30630011).
It is not a de Polignac number, because 30630005 - 28 = 30629749 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (17).
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
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 15 ways as a sum of consecutive naturals, for example, 25145 + ... + 26334.
It is an arithmetic number, because the mean of its divisors is an integer number (2779920).
Almost surely, 230630005 is an apocalyptic number.
30630005 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
It is an amenable number.
30630005 is a deficient number, since it is larger than the sum of its proper divisors (13848715).
30630005 is a wasteful number, since it uses less digits than its factorization.
30630005 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 51508.
The product of its (nonzero) digits is 270, while the sum is 17.
The square root of 30630005 is about 5534.4380925257. The cubic root of 30630005 is about 312.8832801161.
Adding to 30630005 its reverse (50003603), we get a palindrome (80633608).
The spelling of 30630005 in words is "thirty million, six hundred thirty thousand, five".
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