Base | Representation |
---|---|
bin | 111001010110… |
… | …0111111000110 |
3 | 2002120122110202 |
4 | 1302230333012 |
5 | 30144144203 |
6 | 2552250502 |
7 | 513402533 |
oct | 162547706 |
9 | 62518422 |
10 | 30068678 |
11 | 15a78052 |
12 | a0a0a32 |
13 | 62ca323 |
14 | 3dc9d8a |
15 | 298e388 |
hex | 1cacfc6 |
30068678 has 16 divisors (see below), whose sum is σ = 47589120. Its totient is φ = 14209416.
The previous prime is 30068671. The next prime is 30068693. The reversal of 30068678 is 87686003.
It is a Harshad number since it is a multiple of its sum of digits (38).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30068671) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23975 + ... + 25197.
It is an arithmetic number, because the mean of its divisors is an integer number (2974320).
Almost surely, 230068678 is an apocalyptic number.
30068678 is a gapful number since it is divisible by the number (38) formed by its first and last digit.
30068678 is a deficient number, since it is larger than the sum of its proper divisors (17520442).
30068678 is a wasteful number, since it uses less digits than its factorization.
30068678 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1891.
The product of its (nonzero) digits is 48384, while the sum is 38.
The square root of 30068678 is about 5483.4914060296. The cubic root of 30068678 is about 310.9601793496.
The spelling of 30068678 in words is "thirty million, sixty-eight thousand, six hundred seventy-eight".
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