Base | Representation |
---|---|
bin | 101011111101111100… |
… | …000010110111011111 |
3 | 11111212011000222100000 |
4 | 223331330002313133 |
5 | 1233141233031431 |
6 | 33404335105343 |
7 | 3260623536540 |
oct | 537574026737 |
9 | 144764028300 |
10 | 47210048991 |
11 | 19026929616 |
12 | 9196672253 |
13 | 45b4a50741 |
14 | 23dbda44c7 |
15 | 13649929e6 |
hex | afdf02ddf |
47210048991 has 24 divisors (see below), whose sum is σ = 80820498304. Its totient is φ = 26977169880.
The previous prime is 47210048989. The next prime is 47210049011. The reversal of 47210048991 is 19984001274.
It is a happy number.
47210048991 is a `hidden beast` number, since 4 + 72 + 10 + 0 + 489 + 91 = 666.
It is not a de Polignac number, because 47210048991 - 21 = 47210048989 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (47210048911) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13875445 + ... + 13878846.
Almost surely, 247210048991 is an apocalyptic number.
47210048991 is a deficient number, since it is larger than the sum of its proper divisors (33610449313).
47210048991 is an equidigital number, since it uses as much as digits as its factorization.
47210048991 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 27754313 (or 27754301 counting only the distinct ones).
The product of its (nonzero) digits is 145152, while the sum is 45.
The spelling of 47210048991 in words is "forty-seven billion, two hundred ten million, forty-eight thousand, nine hundred ninety-one".
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