Base | Representation |
---|---|
bin | 1011010101010… |
… | …0100000110001 |
3 | 10022102212202110 |
4 | 2311110200301 |
5 | 44132011311 |
6 | 4414435533 |
7 | 1115005332 |
oct | 265244061 |
9 | 108385673 |
10 | 47532081 |
11 | 24915613 |
12 | 13b02ba9 |
13 | 9b02cbc |
14 | 6454289 |
15 | 428d8a6 |
hex | 2d54831 |
47532081 has 8 divisors (see below), whose sum is σ = 63642240. Its totient is φ = 31554992.
The previous prime is 47532077. The next prime is 47532097. The reversal of 47532081 is 18023574.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 47532081 - 22 = 47532077 is a prime.
It is a super-2 number, since 2×475320812 = 4518597448381122, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (47532581) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32430 + ... + 33863.
It is an arithmetic number, because the mean of its divisors is an integer number (7955280).
Almost surely, 247532081 is an apocalyptic number.
It is an amenable number.
47532081 is a deficient number, since it is larger than the sum of its proper divisors (16110159).
47532081 is a wasteful number, since it uses less digits than its factorization.
47532081 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 66535.
The product of its (nonzero) digits is 6720, while the sum is 30.
The square root of 47532081 is about 6894.3513835603. The cubic root of 47532081 is about 362.2393363505.
The spelling of 47532081 in words is "forty-seven million, five hundred thirty-two thousand, eighty-one".
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