Base | Representation |
---|---|
bin | 101101110111… |
… | …111011101100 |
3 | 211121221222212 |
4 | 231313323230 |
5 | 11034304310 |
6 | 1105425552 |
7 | 204134000 |
oct | 55677354 |
9 | 24557885 |
10 | 12025580 |
11 | 6873aa6 |
12 | 403b2b8 |
13 | 2650838 |
14 | 1850700 |
15 | 10c8205 |
hex | b77eec |
12025580 has 48 divisors (see below), whose sum is σ = 29467200. Its totient is φ = 4120704.
The previous prime is 12025553. The next prime is 12025597. The reversal of 12025580 is 8552021.
It is a super-2 number, since 2×120255802 = 289229148672800, which contains 22 as substring.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5984 + ... + 7736.
It is an arithmetic number, because the mean of its divisors is an integer number (613900).
Almost surely, 212025580 is an apocalyptic number.
12025580 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 12025580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14733600).
12025580 is an abundant number, since it is smaller than the sum of its proper divisors (17441620).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12025580 is a wasteful number, since it uses less digits than its factorization.
12025580 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1783 (or 1767 counting only the distinct ones).
The product of its (nonzero) digits is 800, while the sum is 23.
The square root of 12025580 is about 3467.7918045927. The cubic root of 12025580 is about 229.1054096695.
The spelling of 12025580 in words is "twelve million, twenty-five thousand, five hundred eighty".
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