Base | Representation |
---|---|
bin | 1001101000110… |
… | …10000010001001 |
3 | 12122010110012210 |
4 | 10310122002021 |
5 | 131144100420 |
6 | 12004455333 |
7 | 2001121332 |
oct | 464320211 |
9 | 178113183 |
10 | 80846985 |
11 | 416aa59a |
12 | 230aa549 |
13 | 13998a6b |
14 | aa47289 |
15 | 716e9e0 |
hex | 4d1a089 |
80846985 has 16 divisors (see below), whose sum is σ = 136964736. Its totient is φ = 40581888.
The previous prime is 80846963. The next prime is 80846999. The reversal of 80846985 is 58964808.
It is not a de Polignac number, because 80846985 - 26 = 80846921 is a prime.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158269 + ... + 158778.
It is an arithmetic number, because the mean of its divisors is an integer number (8560296).
Almost surely, 280846985 is an apocalyptic number.
80846985 is a gapful number since it is divisible by the number (85) formed by its first and last digit.
It is an amenable number.
80846985 is a deficient number, since it is larger than the sum of its proper divisors (56117751).
80846985 is a wasteful number, since it uses less digits than its factorization.
80846985 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 317072.
The product of its (nonzero) digits is 552960, while the sum is 48.
The square root of 80846985 is about 8991.4951481942. The cubic root of 80846985 is about 432.4022477243.
The spelling of 80846985 in words is "eighty million, eight hundred forty-six thousand, nine hundred eighty-five".
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