Base | Representation |
---|---|
bin | 1001100011111… |
… | …10011111100101 |
3 | 12120221002021210 |
4 | 10301332133211 |
5 | 131013204033 |
6 | 11543102033 |
7 | 1662526041 |
oct | 461763745 |
9 | 176832253 |
10 | 80209893 |
11 | 41304975 |
12 | 22a41919 |
13 | 13804a9a |
14 | a91d021 |
15 | 7095d63 |
hex | 4c7e7e5 |
80209893 has 16 divisors (see below), whose sum is σ = 113904576. Its totient is φ = 50031360.
The previous prime is 80209891. The next prime is 80209897. The reversal of 80209893 is 39890208.
It is not a de Polignac number, because 80209893 - 21 = 80209891 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80209891) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4278 + ... + 13368.
It is an arithmetic number, because the mean of its divisors is an integer number (7119036).
Almost surely, 280209893 is an apocalyptic number.
It is an amenable number.
80209893 is a deficient number, since it is larger than the sum of its proper divisors (33694683).
80209893 is a wasteful number, since it uses less digits than its factorization.
80209893 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9284.
The product of its (nonzero) digits is 31104, while the sum is 39.
The square root of 80209893 is about 8955.9975993744. The cubic root of 80209893 is about 431.2634428912.
The spelling of 80209893 in words is "eighty million, two hundred nine thousand, eight hundred ninety-three".
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