Base | Representation |
---|---|
bin | 1001111001001… |
… | …00111110110110 |
3 | 12210011021111000 |
4 | 10330210332312 |
5 | 132221121412 |
6 | 12122424130 |
7 | 2025252246 |
oct | 474447666 |
9 | 183137430 |
10 | 82988982 |
11 | 4293293a |
12 | 23962046 |
13 | 14268a0b |
14 | b043b26 |
15 | 74444dc |
hex | 4f24fb6 |
82988982 has 32 divisors (see below), whose sum is σ = 185016960. Its totient is φ = 27573480.
The previous prime is 82988957. The next prime is 82988993. The reversal of 82988982 is 28988928.
It is a super-2 number, since 2×829889822 = 13774342266792648, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15553 + ... + 20195.
It is an arithmetic number, because the mean of its divisors is an integer number (5781780).
Almost surely, 282988982 is an apocalyptic number.
82988982 is an abundant number, since it is smaller than the sum of its proper divisors (102027978).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
82988982 is a wasteful number, since it uses less digits than its factorization.
82988982 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4985 (or 4979 counting only the distinct ones).
The product of its digits is 1327104, while the sum is 54.
The square root of 82988982 is about 9109.8288677669. The cubic root of 82988982 is about 436.1877645666.
Subtracting from 82988982 its sum of digits (54), we obtain a palindrome (82988928).
The spelling of 82988982 in words is "eighty-two million, nine hundred eighty-eight thousand, nine hundred eighty-two".
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