Base | Representation |
---|---|
bin | 1001100011001… |
… | …01000010001000 |
3 | 12120201210020101 |
4 | 10301211002020 |
5 | 131001334413 |
6 | 11540535144 |
7 | 1661613022 |
oct | 461450210 |
9 | 176653211 |
10 | 80105608 |
11 | 41243590 |
12 | 229b14b4 |
13 | 1379948b |
14 | a8d3012 |
15 | 7074edd |
hex | 4c65088 |
80105608 has 32 divisors (see below), whose sum is σ = 166173120. Its totient is φ = 35896000.
The previous prime is 80105579. The next prime is 80105609. The reversal of 80105608 is 80650108.
It is a happy number.
It is not an unprimeable number, because it can be changed into a prime (80105609) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163 + ... + 12658.
It is an arithmetic number, because the mean of its divisors is an integer number (5192910).
Almost surely, 280105608 is an apocalyptic number.
80105608 is a gapful number since it is divisible by the number (88) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 80105608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83086560).
80105608 is an abundant number, since it is smaller than the sum of its proper divisors (86067512).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80105608 is a wasteful number, since it uses less digits than its factorization.
80105608 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12909 (or 12905 counting only the distinct ones).
The product of its (nonzero) digits is 1920, while the sum is 28.
The square root of 80105608 is about 8950.1736296007. The cubic root of 80105608 is about 431.0764592508.
The spelling of 80105608 in words is "eighty million, one hundred five thousand, six hundred eight".
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