Base | Representation |
---|---|
bin | 1001110111111… |
… | …10111001011101 |
3 | 12202212100111111 |
4 | 10323332321131 |
5 | 132201123424 |
6 | 12115222021 |
7 | 2024032411 |
oct | 473767135 |
9 | 182770444 |
10 | 82832989 |
11 | 42836718 |
12 | 238a7911 |
13 | 14212a05 |
14 | b002d41 |
15 | 7413194 |
hex | 4efee5d |
82832989 has 4 divisors (see below), whose sum is σ = 87192640. Its totient is φ = 78473340.
The previous prime is 82832987. The next prime is 82832999. The reversal of 82832989 is 98923828.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 82832989 - 21 = 82832987 is a prime.
It is a super-2 number, since 2×828329892 = 13722608133348242, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (82832983) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2179797 + ... + 2179834.
It is an arithmetic number, because the mean of its divisors is an integer number (21798160).
Almost surely, 282832989 is an apocalyptic number.
It is an amenable number.
82832989 is a deficient number, since it is larger than the sum of its proper divisors (4359651).
82832989 is a wasteful number, since it uses less digits than its factorization.
82832989 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4359650.
The product of its digits is 497664, while the sum is 49.
The square root of 82832989 is about 9101.2630442153. The cubic root of 82832989 is about 435.9142948701.
The spelling of 82832989 in words is "eighty-two million, eight hundred thirty-two thousand, nine hundred eighty-nine".
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