Base | Representation |
---|---|
bin | 1001100100111… |
… | …01100001010100 |
3 | 12121011112121201 |
4 | 10302131201110 |
5 | 131031240410 |
6 | 11545522244 |
7 | 1663565413 |
oct | 462354124 |
9 | 177145551 |
10 | 80336980 |
11 | 413913a9 |
12 | 22aa3384 |
13 | 1384a899 |
14 | a95347a |
15 | 70bd83a |
hex | 4c9d854 |
80336980 has 12 divisors (see below), whose sum is σ = 168707700. Its totient is φ = 32134784.
The previous prime is 80336969. The next prime is 80336987. The reversal of 80336980 is 8963308.
It is a happy number.
It can be written as a sum of positive squares in 2 ways, for example, as 15888196 + 64448784 = 3986^2 + 8028^2 .
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80336987) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2008405 + ... + 2008444.
It is an arithmetic number, because the mean of its divisors is an integer number (14058975).
Almost surely, 280336980 is an apocalyptic number.
It is an amenable number.
80336980 is an abundant number, since it is smaller than the sum of its proper divisors (88370720).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80336980 is a wasteful number, since it uses less digits than its factorization.
80336980 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4016858 (or 4016856 counting only the distinct ones).
The product of its (nonzero) digits is 31104, while the sum is 37.
The square root of 80336980 is about 8963.0898690128. The cubic root of 80336980 is about 431.4910916848.
The spelling of 80336980 in words is "eighty million, three hundred thirty-six thousand, nine hundred eighty".
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