Base | Representation |
---|---|
bin | 1001101001010… |
… | …00101100100111 |
3 | 12122020111121022 |
4 | 10310220230213 |
5 | 131203011142 |
6 | 12010041355 |
7 | 2001461414 |
oct | 464505447 |
9 | 178214538 |
10 | 80907047 |
11 | 41740731 |
12 | 2311925b |
13 | 139ba1c0 |
14 | aa6110b |
15 | 71826d2 |
hex | 4d28b27 |
80907047 has 8 divisors (see below), whose sum is σ = 87310944. Its totient is φ = 74528928.
The previous prime is 80907023. The next prime is 80907053. The reversal of 80907047 is 74070908.
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 80907047 - 212 = 80902951 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 80906998 and 80907016.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80907007) 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, 353 + ... + 12725.
It is an arithmetic number, because the mean of its divisors is an integer number (10913868).
Almost surely, 280907047 is an apocalyptic number.
80907047 is a deficient number, since it is larger than the sum of its proper divisors (6403897).
80907047 is a wasteful number, since it uses less digits than its factorization.
80907047 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12889.
The product of its (nonzero) digits is 14112, while the sum is 35.
The square root of 80907047 is about 8994.8344620677. The cubic root of 80907047 is about 432.5092998101.
The spelling of 80907047 in words is "eighty million, nine hundred seven thousand, forty-seven".
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