Base | Representation |
---|---|
bin | 1011011100010… |
… | …0000011110111 |
3 | 10100022002111202 |
4 | 2313010003313 |
5 | 44241121413 |
6 | 4432323115 |
7 | 1121620400 |
oct | 267040367 |
9 | 110262452 |
10 | 47988983 |
11 | 250a7919 |
12 | 140a349b |
13 | 9c32c63 |
14 | 65329a7 |
15 | 432de58 |
hex | 2dc40f7 |
47988983 has 12 divisors (see below), whose sum is σ = 57187872. Its totient is φ = 40128480.
The previous prime is 47988979. The next prime is 47989001. The reversal of 47988983 is 38988974.
It is not a de Polignac number, because 47988983 - 22 = 47988979 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (47988973) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9935 + ... + 13952.
It is an arithmetic number, because the mean of its divisors is an integer number (4765656).
Almost surely, 247988983 is an apocalyptic number.
47988983 is a deficient number, since it is larger than the sum of its proper divisors (9198889).
47988983 is a wasteful number, since it uses less digits than its factorization.
47988983 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 23942 (or 23935 counting only the distinct ones).
The product of its digits is 3483648, while the sum is 56.
The square root of 47988983 is about 6927.4081011588. The cubic root of 47988983 is about 363.3963119701.
Subtracting from 47988983 its reverse (38988974), we obtain a palindrome (9000009).
The spelling of 47988983 in words is "forty-seven million, nine hundred eighty-eight thousand, nine hundred eighty-three".
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