Base | Representation |
---|---|
bin | 1001100111100… |
… | …01100101010100 |
3 | 12121211000221022 |
4 | 10303301211110 |
5 | 131123300200 |
6 | 12001140312 |
7 | 1666531310 |
oct | 463614524 |
9 | 177730838 |
10 | 80681300 |
11 | 415a7067 |
12 | 2302a698 |
13 | 1393b51b |
14 | aa02b40 |
15 | 713a885 |
hex | 4cf1954 |
80681300 has 36 divisors (see below), whose sum is σ = 200091360. Its totient is φ = 27661920.
The previous prime is 80681297. The next prime is 80681311. The reversal of 80681300 is 318608.
It is a self number, because there is not a number n which added to its sum of digits gives 80681300.
It is a congruent number.
It is an unprimeable number.
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 11 ways as a sum of consecutive naturals, for example, 56930 + ... + 58329.
Almost surely, 280681300 is an apocalyptic number.
It is an amenable number.
80681300 is an abundant number, since it is smaller than the sum of its proper divisors (119410060).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80681300 is a wasteful number, since it uses less digits than its factorization.
80681300 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 115280 (or 115273 counting only the distinct ones).
The product of its (nonzero) digits is 1152, while the sum is 26.
The square root of 80681300 is about 8982.2769941702. The cubic root of 80681300 is about 432.1066623342.
Adding to 80681300 its reverse (318608), we get a palindrome (80999908).
The spelling of 80681300 in words is "eighty million, six hundred eighty-one thousand, three hundred".
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