Base | Representation |
---|---|
bin | 101101111110… |
… | …111100001000 |
3 | 211200102100211 |
4 | 231332330020 |
5 | 11041214110 |
6 | 1110210504 |
7 | 204313450 |
oct | 55767410 |
9 | 24612324 |
10 | 12054280 |
11 | 6893617 |
12 | 4053a34 |
13 | 2660914 |
14 | 185ad60 |
15 | 10d198a |
hex | b7ef08 |
12054280 has 32 divisors (see below), whose sum is σ = 30997440. Its totient is φ = 4132800.
The previous prime is 12054269. The next prime is 12054281. The reversal of 12054280 is 8245021.
It is not an unprimeable number, because it can be changed into a prime (12054281) 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, 21246 + ... + 21805.
It is an arithmetic number, because the mean of its divisors is an integer number (968670).
Almost surely, 212054280 is an apocalyptic number.
12054280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12054280 is an abundant number, since it is smaller than the sum of its proper divisors (18943160).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12054280 is a wasteful number, since it uses less digits than its factorization.
12054280 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 43069 (or 43065 counting only the distinct ones).
The product of its (nonzero) digits is 640, while the sum is 22.
The square root of 12054280 is about 3471.9274185962. The cubic root of 12054280 is about 229.2875242768.
The spelling of 12054280 in words is "twelve million, fifty-four thousand, two hundred eighty".
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