Base | Representation |
---|---|
bin | 1011001110110… |
… | …0001111111011 |
3 | 10021122011221100 |
4 | 2303230033323 |
5 | 44024330034 |
6 | 4401342443 |
7 | 1111246263 |
oct | 263541773 |
9 | 107564840 |
10 | 47105019 |
11 | 24653775 |
12 | 13937a23 |
13 | 99b37c0 |
14 | 63827a3 |
15 | 4207099 |
hex | 2cec3fb |
47105019 has 24 divisors (see below), whose sum is σ = 75806640. Its totient is φ = 27986112.
The previous prime is 47105017. The next prime is 47105029. The reversal of 47105019 is 91050174.
It is not a de Polignac number, because 47105019 - 21 = 47105017 is a prime.
It is a super-2 number, since 2×471050192 = 4437765629980722, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 47104983 and 47105001.
It is not an unprimeable number, because it can be changed into a prime (47105017) 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 in 23 ways as a sum of consecutive naturals, for example, 3549 + ... + 10334.
It is an arithmetic number, because the mean of its divisors is an integer number (3158610).
Almost surely, 247105019 is an apocalyptic number.
47105019 is a deficient number, since it is larger than the sum of its proper divisors (28701621).
47105019 is a wasteful number, since it uses less digits than its factorization.
47105019 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13931 (or 13928 counting only the distinct ones).
The product of its (nonzero) digits is 1260, while the sum is 27.
The square root of 47105019 is about 6863.3096243722. The cubic root of 47105019 is about 361.1511990595.
The spelling of 47105019 in words is "forty-seven million, one hundred five thousand, nineteen".
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