Base | Representation |
---|---|
bin | 1011010000111… |
… | …0111011001001 |
3 | 10021220101202201 |
4 | 2310032323021 |
5 | 44043401144 |
6 | 4404400201 |
7 | 1112410333 |
oct | 264167311 |
9 | 107811681 |
10 | 47247049 |
11 | 24740453 |
12 | 139a6061 |
13 | 9a33345 |
14 | 63bc453 |
15 | 42341d4 |
hex | 2d0eec9 |
47247049 has 4 divisors (see below), whose sum is σ = 47280640. Its totient is φ = 47213460.
The previous prime is 47247019. The next prime is 47247089. The reversal of 47247049 is 94074274.
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 47247049 - 219 = 46722761 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 47246999 and 47247017.
It is not an unprimeable number, because it can be changed into a prime (47247019) 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, 14589 + ... + 17530.
It is an arithmetic number, because the mean of its divisors is an integer number (11820160).
Almost surely, 247247049 is an apocalyptic number.
It is an amenable number.
47247049 is a deficient number, since it is larger than the sum of its proper divisors (33591).
47247049 is a wasteful number, since it uses less digits than its factorization.
47247049 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 33590.
The product of its (nonzero) digits is 56448, while the sum is 37.
The square root of 47247049 is about 6873.6488854174. The cubic root of 47247049 is about 361.5138131947.
The spelling of 47247049 in words is "forty-seven million, two hundred forty-seven thousand, forty-nine".
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