Base | Representation |
---|---|
bin | 101011111111110101… |
… | …010111111100111101 |
3 | 11111221100212212200020 |
4 | 223333311113330331 |
5 | 1233222403323111 |
6 | 33411432522353 |
7 | 3261461066022 |
oct | 537765277475 |
9 | 144840785606 |
10 | 47241854781 |
11 | 190428827a0 |
12 | 91a52503b9 |
13 | 45bb508634 |
14 | 24022c3549 |
15 | 1367676906 |
hex | affd57f3d |
47241854781 has 8 divisors (see below), whose sum is σ = 68715425184. Its totient is φ = 28631427120.
The previous prime is 47241854753. The next prime is 47241854783. The reversal of 47241854781 is 18745814274.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 47241854781 - 25 = 47241854749 is a prime.
It is a super-2 number, since 2×472418547812 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (47241854783) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 715785646 + ... + 715785711.
It is an arithmetic number, because the mean of its divisors is an integer number (8589428148).
Almost surely, 247241854781 is an apocalyptic number.
It is an amenable number.
47241854781 is a deficient number, since it is larger than the sum of its proper divisors (21473570403).
47241854781 is a wasteful number, since it uses less digits than its factorization.
47241854781 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1431571371.
The product of its digits is 2007040, while the sum is 51.
The spelling of 47241854781 in words is "forty-seven billion, two hundred forty-one million, eight hundred fifty-four thousand, seven hundred eighty-one".
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