Base | Representation |
---|---|
bin | 1001101000101… |
… | …10001001101110 |
3 | 12122002122101221 |
4 | 10310112021232 |
5 | 131143043321 |
6 | 12004253554 |
7 | 2001024100 |
oct | 464261156 |
9 | 178078357 |
10 | 80831086 |
11 | 41699656 |
12 | 230a12ba |
13 | 1399175b |
14 | aa41570 |
15 | 7169e41 |
hex | 4d1626e |
80831086 has 24 divisors (see below), whose sum is σ = 143040816. Its totient is φ = 34151040.
The previous prime is 80831071. The next prime is 80831087. The reversal of 80831086 is 68013808.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80831087) 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 11 ways as a sum of consecutive naturals, for example, 1150 + ... + 12766.
It is an arithmetic number, because the mean of its divisors is an integer number (5960034).
Almost surely, 280831086 is an apocalyptic number.
80831086 is a deficient number, since it is larger than the sum of its proper divisors (62209730).
80831086 is a wasteful number, since it uses less digits than its factorization.
80831086 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 11704 (or 11697 counting only the distinct ones).
The product of its (nonzero) digits is 9216, while the sum is 34.
The square root of 80831086 is about 8990.6109914733. The cubic root of 80831086 is about 432.3739011136.
The spelling of 80831086 in words is "eighty million, eight hundred thirty-one thousand, eighty-six".
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