Base | Representation |
---|---|
bin | 1001100011001… |
… | …10000110101101 |
3 | 12120202000020221 |
4 | 10301212012231 |
5 | 131002004442 |
6 | 11541011341 |
7 | 1661631562 |
oct | 461460655 |
9 | 176660227 |
10 | 80109997 |
11 | 41246910 |
12 | 229b3b51 |
13 | 1379b486 |
14 | a8d4869 |
15 | 7076467 |
hex | 4c661ad |
80109997 has 8 divisors (see below), whose sum is σ = 87508800. Its totient is φ = 72730560.
The previous prime is 80109979. The next prime is 80110007. The reversal of 80109997 is 79990108.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 80109997 - 211 = 80107949 is a prime.
It is a super-2 number, since 2×801099972 = 12835223238680018, 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 (80109917) 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, 4629 + ... + 13477.
It is an arithmetic number, because the mean of its divisors is an integer number (10938600).
Almost surely, 280109997 is an apocalyptic number.
It is an amenable number.
80109997 is a deficient number, since it is larger than the sum of its proper divisors (7398803).
80109997 is a wasteful number, since it uses less digits than its factorization.
80109997 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9683.
The product of its (nonzero) digits is 40824, while the sum is 43.
The square root of 80109997 is about 8950.4188170163. The cubic root of 80109997 is about 431.0843320247.
The spelling of 80109997 in words is "eighty million, one hundred nine thousand, nine hundred ninety-seven".
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