Base | Representation |
---|---|
bin | 1001101000110… |
… | …01100011101001 |
3 | 12122010100112111 |
4 | 10310121203221 |
5 | 131144020113 |
6 | 12004442321 |
7 | 2001112543 |
oct | 464314351 |
9 | 178110474 |
10 | 80845033 |
11 | 416a9085 |
12 | 230a93a1 |
13 | 13997bc9 |
14 | aa46693 |
15 | 716e13d |
hex | 4d198e9 |
80845033 has 4 divisors (see below), whose sum is σ = 80971408. Its totient is φ = 80718660.
The previous prime is 80845021. The next prime is 80845043. The reversal of 80845033 is 33054808.
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 80845033 - 25 = 80845001 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 80844986 and 80845004.
It is not an unprimeable number, because it can be changed into a prime (80845003) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62223 + ... + 63508.
It is an arithmetic number, because the mean of its divisors is an integer number (20242852).
Almost surely, 280845033 is an apocalyptic number.
It is an amenable number.
80845033 is a deficient number, since it is larger than the sum of its proper divisors (126375).
80845033 is a wasteful number, since it uses less digits than its factorization.
80845033 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 126374.
The product of its (nonzero) digits is 11520, while the sum is 31.
The square root of 80845033 is about 8991.3866005194. The cubic root of 80845033 is about 432.3987676689.
The spelling of 80845033 in words is "eighty million, eight hundred forty-five thousand, thirty-three".
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