Base | Representation |
---|---|
bin | 101011111111001111… |
… | …011000001011100001 |
3 | 11111220200010211101100 |
4 | 223333033120023201 |
5 | 1233212331103431 |
6 | 33410435225013 |
7 | 3261310322400 |
oct | 537717301341 |
9 | 144820124340 |
10 | 47231894241 |
11 | 1903819a244 |
12 | 91a1a48169 |
13 | 45b942ba1c |
14 | 2400c4d637 |
15 | 136685a4e6 |
hex | aff3d82e1 |
47231894241 has 81 divisors (see below), whose sum is σ = 80998008273. Its totient is φ = 26444592720.
The previous prime is 47231894209. The next prime is 47231894251. The reversal of 47231894241 is 14249813274.
The square root of 47231894241 is 217329.
It is a perfect power (a square), and thus also a powerful number.
47231894241 is a `hidden beast` number, since 4 + 7 + 2 + 318 + 94 + 241 = 666.
It is not a de Polignac number, because 47231894241 - 25 = 47231894209 is a prime.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (47231894251) by changing a digit.
It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 360548746 + ... + 360548876.
Almost surely, 247231894241 is an apocalyptic number.
47231894241 is the 217329-th square number.
47231894241 is the 108665-th centered octagonal number.
It is an amenable number.
47231894241 is a deficient number, since it is larger than the sum of its proper divisors (33766114032).
47231894241 is an equidigital number, since it uses as much as digits as its factorization.
47231894241 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 440 (or 220 counting only the distinct ones).
The product of its digits is 387072, while the sum is 45.
The spelling of 47231894241 in words is "forty-seven billion, two hundred thirty-one million, eight hundred ninety-four thousand, two hundred forty-one".
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