Base | Representation |
---|---|
bin | 1001100100001… |
… | …00010100111111 |
3 | 12120222022001220 |
4 | 10302010110333 |
5 | 131014440131 |
6 | 11543404423 |
7 | 1662655521 |
oct | 462042477 |
9 | 176868056 |
10 | 80233791 |
11 | 41320920 |
12 | 22a53713 |
13 | 13812921 |
14 | a927a11 |
15 | 709ce96 |
hex | 4c8453f |
80233791 has 8 divisors (see below), whose sum is σ = 116703744. Its totient is φ = 48626520.
The previous prime is 80233787. The next prime is 80233793. The reversal of 80233791 is 19733208.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 80233791 - 22 = 80233787 is a prime.
It is a super-2 number, since 2×802337912 = 12874922436463362, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 2431327 = 80233791 / (8 + 0 + 2 + 3 + 3 + 7 + 9 + 1).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80233793) 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 7 ways as a sum of consecutive naturals, for example, 1215631 + ... + 1215696.
It is an arithmetic number, because the mean of its divisors is an integer number (14587968).
Almost surely, 280233791 is an apocalyptic number.
80233791 is a deficient number, since it is larger than the sum of its proper divisors (36469953).
80233791 is a wasteful number, since it uses less digits than its factorization.
80233791 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2431341.
The product of its (nonzero) digits is 9072, while the sum is 33.
The square root of 80233791 is about 8957.3316897389. The cubic root of 80233791 is about 431.3062693222.
Adding to 80233791 its reverse (19733208), we get a palindrome (99966999).
The spelling of 80233791 in words is "eighty million, two hundred thirty-three thousand, seven hundred ninety-one".
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