Base | Representation |
---|---|
bin | 1001101000101… |
… | …00001011001001 |
3 | 12122002020021220 |
4 | 10310110023021 |
5 | 131142313420 |
6 | 12004152253 |
7 | 2000661345 |
oct | 464241311 |
9 | 178066256 |
10 | 80822985 |
11 | 41693561 |
12 | 23098689 |
13 | 1398ab69 |
14 | aa3c625 |
15 | 7167840 |
hex | 4d142c9 |
80822985 has 32 divisors (see below), whose sum is σ = 134151552. Its totient is φ = 41518080.
The previous prime is 80822923. The next prime is 80823011. The reversal of 80822985 is 58922808.
It is not a de Polignac number, because 80822985 - 27 = 80822857 is a prime.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58705 + ... + 60065.
It is an arithmetic number, because the mean of its divisors is an integer number (4192236).
Almost surely, 280822985 is an apocalyptic number.
It is an amenable number.
80822985 is a deficient number, since it is larger than the sum of its proper divisors (53328567).
80822985 is a wasteful number, since it uses less digits than its factorization.
80822985 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1513.
The product of its (nonzero) digits is 92160, while the sum is 42.
The square root of 80822985 is about 8990.1604546304. The cubic root of 80822985 is about 432.3594562667.
The spelling of 80822985 in words is "eighty million, eight hundred twenty-two thousand, nine hundred eighty-five".
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