Base | Representation |
---|---|
bin | 111100101100100010011 |
3 | 10202001020100 |
4 | 13211210103 |
5 | 1002121013 |
6 | 110343443 |
7 | 22622331 |
oct | 7454423 |
9 | 3661210 |
10 | 1988883 |
11 | 1139306 |
12 | 7bab83 |
13 | 548370 |
14 | 39ab51 |
15 | 294473 |
hex | 1e5913 |
1988883 has 24 divisors (see below), whose sum is σ = 3144960. Its totient is φ = 1203840.
The previous prime is 1988851. The next prime is 1988887. The reversal of 1988883 is 3888891.
It is not a de Polignac number, because 1988883 - 25 = 1988851 is a prime.
It is not an unprimeable number, because it can be changed into a prime (1988887) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10318 + ... + 10508.
It is an arithmetic number, because the mean of its divisors is an integer number (131040).
21988883 is an apocalyptic number.
1988883 is a gapful number since it is divisible by the number (13) formed by its first and last digit.
1988883 is a deficient number, since it is larger than the sum of its proper divisors (1156077).
1988883 is a wasteful number, since it uses less digits than its factorization.
1988883 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 299 (or 296 counting only the distinct ones).
The product of its digits is 110592, while the sum is 45.
The square root of 1988883 is about 1410.2776322413. The cubic root of 1988883 is about 125.7582287472.
It can be divided in two parts, 198888 and 3, that added together give a palindrome (198891).
The spelling of 1988883 in words is "one million, nine hundred eighty-eight thousand, eight hundred eighty-three".
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