Base | Representation |
---|---|
bin | 1001100101011… |
… | …10101010011101 |
3 | 12121022002221100 |
4 | 10302232222131 |
5 | 131041012242 |
6 | 11551223313 |
7 | 1664310213 |
oct | 462565235 |
9 | 177262840 |
10 | 80407197 |
11 | 4142a132 |
12 | 22b17b39 |
13 | 13873830 |
14 | a970cb3 |
15 | 70d454c |
hex | 4caea9d |
80407197 has 18 divisors (see below), whose sum is σ = 125228922. Its totient is φ = 49421664.
The previous prime is 80407181. The next prime is 80407199. The reversal of 80407197 is 79170408.
It can be written as a sum of positive squares in 3 ways, for example, as 5861241 + 74545956 = 2421^2 + 8634^2 .
It is not a de Polignac number, because 80407197 - 24 = 80407181 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80407199) by changing a digit.
It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 96579 + ... + 97407.
Almost surely, 280407197 is an apocalyptic number.
It is an amenable number.
80407197 is a deficient number, since it is larger than the sum of its proper divisors (44821725).
80407197 is an equidigital number, since it uses as much as digits as its factorization.
80407197 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1677 (or 845 counting only the distinct ones).
The product of its (nonzero) digits is 14112, while the sum is 36.
The square root of 80407197 is about 8967.0060220789. The cubic root of 80407197 is about 431.6167672543.
The spelling of 80407197 in words is "eighty million, four hundred seven thousand, one hundred ninety-seven".
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