Base | Representation |
---|---|
bin | 111010111011… |
… | …0101011011110 |
3 | 2011010121201101 |
4 | 1311312223132 |
5 | 30402113224 |
6 | 3022103314 |
7 | 523413226 |
oct | 165665336 |
9 | 64117641 |
10 | 30894814 |
11 | 16491805 |
12 | a41ab3a |
13 | 6529372 |
14 | 4163086 |
15 | 2aa4044 |
hex | 1d76ade |
30894814 has 8 divisors (see below), whose sum is σ = 49068288. Its totient is φ = 14538720.
The previous prime is 30894803. The next prime is 30894821. The reversal of 30894814 is 41849803.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 454302 + ... + 454369.
It is an arithmetic number, because the mean of its divisors is an integer number (6133536).
Almost surely, 230894814 is an apocalyptic number.
30894814 is a gapful number since it is divisible by the number (34) formed by its first and last digit.
30894814 is a deficient number, since it is larger than the sum of its proper divisors (18173474).
30894814 is a wasteful number, since it uses less digits than its factorization.
30894814 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 908690.
The product of its (nonzero) digits is 27648, while the sum is 37.
The square root of 30894814 is about 5558.3103547751. The cubic root of 30894814 is about 313.7823623385.
The spelling of 30894814 in words is "thirty million, eight hundred ninety-four thousand, eight hundred fourteen".
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