Base | Representation |
---|---|
bin | 101111100111… |
… | …111101000100 |
3 | 212111021101221 |
4 | 233213331010 |
5 | 11144000140 |
6 | 1123330124 |
7 | 211054504 |
oct | 57477504 |
9 | 25437357 |
10 | 12484420 |
11 | 7057803 |
12 | 4220944 |
13 | 2781640 |
14 | 192da04 |
15 | 116914a |
hex | be7f44 |
12484420 has 24 divisors (see below), whose sum is σ = 28234584. Its totient is φ = 4609536.
The previous prime is 12484403. The next prime is 12484421. The reversal of 12484420 is 2448421.
It can be written as a sum of positive squares in 4 ways, for example, as 37636 + 12446784 = 194^2 + 3528^2 .
It is not an unprimeable number, because it can be changed into a prime (12484421) 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, 23749 + ... + 24268.
It is an arithmetic number, because the mean of its divisors is an integer number (1176441).
Almost surely, 212484420 is an apocalyptic number.
12484420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12484420 is an abundant number, since it is smaller than the sum of its proper divisors (15750164).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12484420 is a wasteful number, since it uses less digits than its factorization.
12484420 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 48039 (or 48037 counting only the distinct ones).
The product of its (nonzero) digits is 2048, while the sum is 25.
The square root of 12484420 is about 3533.3298742121. The cubic root of 12484420 is about 231.9829803210.
The spelling of 12484420 in words is "twelve million, four hundred eighty-four thousand, four hundred twenty".
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