Base | Representation |
---|---|
bin | 111001001111… |
… | …0111001101001 |
3 | 2002110201022222 |
4 | 1302132321221 |
5 | 30140322420 |
6 | 2551123425 |
7 | 513042404 |
oct | 162367151 |
9 | 62421288 |
10 | 30010985 |
11 | 15a38774 |
12 | a073575 |
13 | 62a9ca4 |
14 | 3db2d3b |
15 | 297c225 |
hex | 1c9ee69 |
30010985 has 16 divisors (see below), whose sum is σ = 36916560. Its totient is φ = 23412480.
The previous prime is 30010973. The next prime is 30010997. The reversal of 30010985 is 58901003.
It is an interprime number because it is at equal distance from previous prime (30010973) and next prime (30010997).
It can be written as a sum of positive squares in 8 ways, for example, as 8952064 + 21058921 = 2992^2 + 4589^2 .
It is not a de Polignac number, because 30010985 - 218 = 29748841 is a prime.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71075 + ... + 71495.
It is an arithmetic number, because the mean of its divisors is an integer number (2307285).
Almost surely, 230010985 is an apocalyptic number.
It is an amenable number.
30010985 is a deficient number, since it is larger than the sum of its proper divisors (6905575).
30010985 is a wasteful number, since it uses less digits than its factorization.
30010985 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 748.
The product of its (nonzero) digits is 1080, while the sum is 26.
The square root of 30010985 is about 5478.2282719872. The cubic root of 30010985 is about 310.7611714663.
Adding to 30010985 its reverse (58901003), we get a palindrome (88911988).
The spelling of 30010985 in words is "thirty million, ten thousand, nine hundred eighty-five".
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