Base | Representation |
---|---|
bin | 1001100111100… |
… | …01011101100111 |
3 | 12121211000021001 |
4 | 10303301131213 |
5 | 131123241212 |
6 | 12001134131 |
7 | 1666530004 |
oct | 463613547 |
9 | 177730231 |
10 | 80680807 |
11 | 415a6759 |
12 | 2302a347 |
13 | 1393b22c |
14 | aa028ab |
15 | 713a657 |
hex | 4cf1767 |
80680807 has 4 divisors (see below), whose sum is σ = 81269856. Its totient is φ = 80091760.
The previous prime is 80680777. The next prime is 80680823. The reversal of 80680807 is 70808608.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 80680807 - 219 = 80156519 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80680867) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 294319 + ... + 294592.
It is an arithmetic number, because the mean of its divisors is an integer number (20317464).
Almost surely, 280680807 is an apocalyptic number.
80680807 is a deficient number, since it is larger than the sum of its proper divisors (589049).
80680807 is a wasteful number, since it uses less digits than its factorization.
80680807 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 589048.
The product of its (nonzero) digits is 21504, while the sum is 37.
The square root of 80680807 is about 8982.2495511982. The cubic root of 80680807 is about 432.1057822087.
The spelling of 80680807 in words is "eighty million, six hundred eighty thousand, eight hundred seven".
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