Base | Representation |
---|---|
bin | 1001101001111… |
… | …00000010111001 |
3 | 12122101112022111 |
4 | 10310330002321 |
5 | 131213030142 |
6 | 12011452321 |
7 | 2002241440 |
oct | 464740271 |
9 | 178345274 |
10 | 80986297 |
11 | 41795227 |
12 | 231570a1 |
13 | 13a172b2 |
14 | aa81d57 |
15 | 719ae17 |
hex | 4d3c0b9 |
80986297 has 8 divisors (see below), whose sum is σ = 93728000. Its totient is φ = 68537664.
The previous prime is 80986261. The next prime is 80986307. The reversal of 80986297 is 79268908.
It is a happy number.
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 80986297 - 219 = 80462009 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 80986297.
It is not an unprimeable number, because it can be changed into a prime (80983297) 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, 72672 + ... + 73777.
It is an arithmetic number, because the mean of its divisors is an integer number (11716000).
Almost surely, 280986297 is an apocalyptic number.
It is an amenable number.
80986297 is a deficient number, since it is larger than the sum of its proper divisors (12741703).
80986297 is a wasteful number, since it uses less digits than its factorization.
80986297 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 146535.
The product of its (nonzero) digits is 435456, while the sum is 49.
The square root of 80986297 is about 8999.2386900226. The cubic root of 80986297 is about 432.6504707707.
The spelling of 80986297 in words is "eighty million, nine hundred eighty-six thousand, two hundred ninety-seven".
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