Base | Representation |
---|---|
bin | 10110100000000111… |
… | …00100001101101000 |
3 | 1011011220122112010102 |
4 | 23100003210031220 |
5 | 144220103432110 |
6 | 5314423404532 |
7 | 605236545620 |
oct | 132003441550 |
9 | 34156575112 |
10 | 12080530280 |
11 | 513a165225 |
12 | 24118b3748 |
13 | 11a6a4c390 |
14 | 8285c1880 |
15 | 4aa87b5a5 |
hex | 2d00e4368 |
12080530280 has 256 divisors, whose sum is σ = 34857768960. Its totient is φ = 3666124800.
The previous prime is 12080530271. The next prime is 12080530283. The reversal of 12080530280 is 8203508021.
It is not an unprimeable number, because it can be changed into a prime (12080530283) 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 63 ways as a sum of consecutive naturals, for example, 9102977 + ... + 9104303.
It is an arithmetic number, because the mean of its divisors is an integer number (136163160).
Almost surely, 212080530280 is an apocalyptic number.
12080530280 is a gapful number since it is divisible by the number (10) 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 12080530280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17428884480).
12080530280 is an abundant number, since it is smaller than the sum of its proper divisors (22777238680).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12080530280 is a wasteful number, since it uses less digits than its factorization.
12080530280 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1460 (or 1456 counting only the distinct ones).
The product of its (nonzero) digits is 3840, while the sum is 29.
The spelling of 12080530280 in words is "twelve billion, eighty million, five hundred thirty thousand, two hundred eighty".
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