Base | Representation |
---|---|
bin | 1001101001000… |
… | …11100111000101 |
3 | 12122012110000200 |
4 | 10310203213011 |
5 | 131201324323 |
6 | 12005401113 |
7 | 2001343602 |
oct | 464434705 |
9 | 178173020 |
10 | 80886213 |
11 | 41727011 |
12 | 23109199 |
13 | 139b0885 |
14 | aa576a9 |
15 | 717b443 |
hex | 4d239c5 |
80886213 has 6 divisors (see below), whose sum is σ = 116835654. Its totient is φ = 53924136.
The previous prime is 80886203. The next prime is 80886233. The reversal of 80886213 is 31268808.
It can be written as a sum of positive squares in only one way, i.e., 58018689 + 22867524 = 7617^2 + 4782^2 .
It is not a de Polignac number, because 80886213 - 218 = 80624069 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80886203) 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 5 ways as a sum of consecutive naturals, for example, 4493670 + ... + 4493687.
It is an arithmetic number, because the mean of its divisors is an integer number (19472609).
Almost surely, 280886213 is an apocalyptic number.
It is an amenable number.
80886213 is a deficient number, since it is larger than the sum of its proper divisors (35949441).
80886213 is a wasteful number, since it uses less digits than its factorization.
80886213 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8987363 (or 8987360 counting only the distinct ones).
The product of its (nonzero) digits is 18432, while the sum is 36.
The square root of 80886213 is about 8993.6762783636. The cubic root of 80886213 is about 432.4721721323.
The spelling of 80886213 in words is "eighty million, eight hundred eighty-six thousand, two hundred thirteen".
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