Base | Representation |
---|---|
bin | 1011011011111… |
… | …0010100011111 |
3 | 10100020220020221 |
4 | 2312332110133 |
5 | 44234343341 |
6 | 4432022211 |
7 | 1121462011 |
oct | 266762437 |
9 | 110226227 |
10 | 47965471 |
11 | 25091194 |
12 | 14091967 |
13 | 9c25348 |
14 | 65281b1 |
15 | 4326ed1 |
hex | 2dbe51f |
47965471 has 2 divisors, whose sum is σ = 47965472. Its totient is φ = 47965470.
The previous prime is 47965469. The next prime is 47965493. The reversal of 47965471 is 17456974.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 47965471 - 21 = 47965469 is a prime.
It is a super-3 number, since 3×479654713 (a number of 24 digits) contains 333 as substring.
Together with 47965469, it forms a pair of twin primes.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (47965441) by changing a digit.
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 as a sum of consecutive naturals, namely, 23982735 + 23982736.
It is an arithmetic number, because the mean of its divisors is an integer number (23982736).
Almost surely, 247965471 is an apocalyptic number.
47965471 is a deficient number, since it is larger than the sum of its proper divisors (1).
47965471 is an equidigital number, since it uses as much as digits as its factorization.
47965471 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 211680, while the sum is 43.
The square root of 47965471 is about 6925.7108660411. The cubic root of 47965471 is about 363.3369541111.
The spelling of 47965471 in words is "forty-seven million, nine hundred sixty-five thousand, four hundred seventy-one".
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