Base | Representation |
---|---|
bin | 1001100111100… |
… | …11010001001111 |
3 | 12121211101102010 |
4 | 10303303101033 |
5 | 131124010312 |
6 | 12001232303 |
7 | 1666560405 |
oct | 463632117 |
9 | 177741363 |
10 | 80688207 |
11 | 41601276 |
12 | 23032693 |
13 | 13941702 |
14 | aa05475 |
15 | 713c93c |
hex | 4cf344f |
80688207 has 16 divisors (see below), whose sum is σ = 109939680. Its totient is φ = 52620672.
The previous prime is 80688203. The next prime is 80688227. The reversal of 80688207 is 70288608.
It is not a de Polignac number, because 80688207 - 22 = 80688203 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80688203) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80433 + ... + 81429.
It is an arithmetic number, because the mean of its divisors is an integer number (6871230).
Almost surely, 280688207 is an apocalyptic number.
80688207 is a deficient number, since it is larger than the sum of its proper divisors (29251473).
80688207 is a wasteful number, since it uses less digits than its factorization.
80688207 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1562.
The product of its (nonzero) digits is 43008, while the sum is 39.
The square root of 80688207 is about 8982.6614652897. The cubic root of 80688207 is about 432.1189926410.
The spelling of 80688207 in words is "eighty million, six hundred eighty-eight thousand, two hundred seven".
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