Base | Representation |
---|---|
bin | 1001100101001… |
… | …00000010101001 |
3 | 12121012220020221 |
4 | 10302210002221 |
5 | 131033114224 |
6 | 11550250041 |
7 | 1664036320 |
oct | 462440251 |
9 | 177186227 |
10 | 80363689 |
11 | 413aa47a |
12 | 22ab6921 |
13 | 13859aa3 |
14 | a95d0b7 |
15 | 70c66e4 |
hex | 4ca40a9 |
80363689 has 16 divisors (see below), whose sum is σ = 94390912. Its totient is φ = 66987648.
The previous prime is 80363683. The next prime is 80363713. The reversal of 80363689 is 98636308.
It is not a de Polignac number, because 80363689 - 213 = 80355497 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (43).
It is not an unprimeable number, because it can be changed into a prime (80363683) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93787 + ... + 94639.
It is an arithmetic number, because the mean of its divisors is an integer number (5899432).
Almost surely, 280363689 is an apocalyptic number.
It is an amenable number.
80363689 is a deficient number, since it is larger than the sum of its proper divisors (14027223).
80363689 is a wasteful number, since it uses less digits than its factorization.
80363689 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1216.
The product of its (nonzero) digits is 186624, while the sum is 43.
The square root of 80363689 is about 8964.5796889759. The cubic root of 80363689 is about 431.5389045295.
The spelling of 80363689 in words is "eighty million, three hundred sixty-three thousand, six hundred eighty-nine".
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