Base | Representation |
---|---|
bin | 1011011100001… |
… | …1010000111101 |
3 | 10100021221001002 |
4 | 2313003100331 |
5 | 44241020400 |
6 | 4432300045 |
7 | 1121605034 |
oct | 267032075 |
9 | 110257032 |
10 | 47985725 |
11 | 250a5427 |
12 | 140a1625 |
13 | 9c31628 |
14 | 653171b |
15 | 432ced5 |
hex | 2dc343d |
47985725 has 6 divisors (see below), whose sum is σ = 59502330. Its totient is φ = 38388560.
The previous prime is 47985709. The next prime is 47985727. The reversal of 47985725 is 52758974.
It is a happy number.
It can be written as a sum of positive squares in 3 ways, for example, as 182329 + 47803396 = 427^2 + 6914^2 .
It is not a de Polignac number, because 47985725 - 24 = 47985709 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 47985725.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (47985727) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 959690 + ... + 959739.
It is an arithmetic number, because the mean of its divisors is an integer number (9917055).
Almost surely, 247985725 is an apocalyptic number.
It is an amenable number.
47985725 is a deficient number, since it is larger than the sum of its proper divisors (11516605).
47985725 is a wasteful number, since it uses less digits than its factorization.
47985725 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1919439 (or 1919434 counting only the distinct ones).
The product of its digits is 705600, while the sum is 47.
The square root of 47985725 is about 6927.1729442825. The cubic root of 47985725 is about 363.3880880549.
The spelling of 47985725 in words is "forty-seven million, nine hundred eighty-five thousand, seven hundred twenty-five".
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