Base | Representation |
---|---|
bin | 101100001111011101… |
… | …111010111110110001 |
3 | 11112121122102110110012 |
4 | 230033131322332301 |
5 | 1234242030023012 |
6 | 33453442344305 |
7 | 3301124355365 |
oct | 541735727661 |
9 | 145548373405 |
10 | 47504142257 |
11 | 19167939200 |
12 | 925905b095 |
13 | 4630960b20 |
14 | 242907b2a5 |
15 | 13806d6622 |
hex | b0f77afb1 |
47504142257 has 24 divisors (see below), whose sum is σ = 57428370048. Its totient is φ = 39015393120.
The previous prime is 47504142221. The next prime is 47504142277. The reversal of 47504142257 is 75224140574.
It is not a de Polignac number, because 47504142257 - 212 = 47504138161 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (47504142277) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 247343 + ... + 395204.
It is an arithmetic number, because the mean of its divisors is an integer number (2392848752).
Almost surely, 247504142257 is an apocalyptic number.
47504142257 is a gapful number since it is divisible by the number (47) formed by its first and last digit.
It is an amenable number.
47504142257 is a deficient number, since it is larger than the sum of its proper divisors (9924227791).
47504142257 is a wasteful number, since it uses less digits than its factorization.
47504142257 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 642629 (or 642618 counting only the distinct ones).
The product of its (nonzero) digits is 313600, while the sum is 41.
The spelling of 47504142257 in words is "forty-seven billion, five hundred four million, one hundred forty-two thousand, two hundred fifty-seven".
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