Base | Representation |
---|---|
bin | 1011010111010… |
… | …1110011011001 |
3 | 10022200210210211 |
4 | 2311311303121 |
5 | 44200342231 |
6 | 4421411121 |
7 | 1116114022 |
oct | 265656331 |
9 | 108623724 |
10 | 47668441 |
11 | 249a9007 |
12 | 13b69aa1 |
13 | 9b500a2 |
14 | 648bc49 |
15 | 42b8eb1 |
hex | 2d75cd9 |
47668441 has 4 divisors (see below), whose sum is σ = 47699712. Its totient is φ = 47637172.
The previous prime is 47668433. The next prime is 47668447. The reversal of 47668441 is 14486674.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 47668441 - 23 = 47668433 is a prime.
It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 47668394 and 47668403.
It is not an unprimeable number, because it can be changed into a prime (47668447) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13225 + ... + 16438.
It is an arithmetic number, because the mean of its divisors is an integer number (11924928).
Almost surely, 247668441 is an apocalyptic number.
It is an amenable number.
47668441 is a deficient number, since it is larger than the sum of its proper divisors (31271).
47668441 is a wasteful number, since it uses less digits than its factorization.
47668441 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 31270.
The product of its digits is 129024, while the sum is 40.
The square root of 47668441 is about 6904.2335563044. The cubic root of 47668441 is about 362.5854029457.
The spelling of 47668441 in words is "forty-seven million, six hundred sixty-eight thousand, four hundred forty-one".
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