Base | Representation |
---|---|
bin | 1011011100001… |
… | …1001100011000 |
3 | 10100021220122020 |
4 | 2313003030120 |
5 | 44241013212 |
6 | 4432254440 |
7 | 1121604135 |
oct | 267031430 |
9 | 110256566 |
10 | 47985432 |
11 | 250a5190 |
12 | 140a1420 |
13 | 9c31461 |
14 | 653158c |
15 | 432cd8c |
hex | 2dc3318 |
47985432 has 32 divisors (see below), whose sum is σ = 130870080. Its totient is φ = 14540960.
The previous prime is 47985391. The next prime is 47985433. The reversal of 47985432 is 23458974.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (47985433) 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, 90618 + ... + 91145.
It is an arithmetic number, because the mean of its divisors is an integer number (4089690).
Almost surely, 247985432 is an apocalyptic number.
It is an amenable number.
47985432 is an abundant number, since it is smaller than the sum of its proper divisors (82884648).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
47985432 is a wasteful number, since it uses less digits than its factorization.
47985432 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 181783 (or 181779 counting only the distinct ones).
The product of its digits is 241920, while the sum is 42.
The square root of 47985432 is about 6927.1517956517. The cubic root of 47985432 is about 363.3873484396.
The spelling of 47985432 in words is "forty-seven million, nine hundred eighty-five thousand, four hundred thirty-two".
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