Base | Representation |
---|---|
bin | 1001100100100… |
… | …01000100011110 |
3 | 12121001221122220 |
4 | 10302101010132 |
5 | 131023122412 |
6 | 11544450210 |
7 | 1663263630 |
oct | 462210436 |
9 | 177057586 |
10 | 80285982 |
11 | 41357057 |
12 | 22a79966 |
13 | 138305ca |
14 | a93ca50 |
15 | 70ad68c |
hex | 4c9111e |
80285982 has 32 divisors (see below), whose sum is σ = 193171200. Its totient is φ = 21731328.
The previous prime is 80285941. The next prime is 80285993. The reversal of 80285982 is 28958208.
It is a Harshad number since it is a multiple of its sum of digits (42).
It is a congruent number.
It is an unprimeable number.
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 15 ways as a sum of consecutive naturals, for example, 49507 + ... + 51102.
It is an arithmetic number, because the mean of its divisors is an integer number (6036600).
Almost surely, 280285982 is an apocalyptic number.
80285982 is an abundant number, since it is smaller than the sum of its proper divisors (112885218).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80285982 is a wasteful number, since it uses less digits than its factorization.
80285982 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 100640.
The product of its (nonzero) digits is 92160, while the sum is 42.
The square root of 80285982 is about 8960.2445279133. The cubic root of 80285982 is about 431.3997686908.
The spelling of 80285982 in words is "eighty million, two hundred eighty-five thousand, nine hundred eighty-two".
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