Base | Representation |
---|---|
bin | 1011011001100… |
… | …1100101001001 |
3 | 10022222020211101 |
4 | 2312121211021 |
5 | 44220034420 |
6 | 4424501401 |
7 | 1120264201 |
oct | 266314511 |
9 | 108866741 |
10 | 47814985 |
11 | 24a99119 |
12 | 1401a861 |
13 | 9ba19ba |
14 | 64c9401 |
15 | 42e760a |
hex | 2d99949 |
47814985 has 8 divisors (see below), whose sum is σ = 57415176. Its totient is φ = 38227200.
The previous prime is 47814967. The next prime is 47815003. The reversal of 47814985 is 58941874.
47814985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is an interprime number because it is at equal distance from previous prime (47814967) and next prime (47815003).
It can be written as a sum of positive squares in 4 ways, for example, as 149769 + 47665216 = 387^2 + 6904^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 47814985 - 27 = 47814857 is a prime.
It is an alternating number because its digits alternate between even and odd.
It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 12835 + ... + 16135.
It is an arithmetic number, because the mean of its divisors is an integer number (7176897).
Almost surely, 247814985 is an apocalyptic number.
It is an amenable number.
47814985 is a deficient number, since it is larger than the sum of its proper divisors (9600191).
47814985 is a wasteful number, since it uses less digits than its factorization.
47814985 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6203.
The product of its digits is 322560, while the sum is 46.
The square root of 47814985 is about 6914.8380313641. The cubic root of 47814985 is about 362.9565804477.
The spelling of 47814985 in words is "forty-seven million, eight hundred fourteen thousand, nine hundred eighty-five".
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