Base | Representation |
---|---|
bin | 101110000101… |
… | …010110100001 |
3 | 211201202101121 |
4 | 232011112201 |
5 | 11043034140 |
6 | 1110532241 |
7 | 204453151 |
oct | 56052641 |
9 | 24652347 |
10 | 12080545 |
11 | 6901324 |
12 | 4067081 |
13 | 266c869 |
14 | 1866761 |
15 | 10d964a |
hex | b855a1 |
12080545 has 16 divisors (see below), whose sum is σ = 15229440. Its totient is φ = 9187200.
The previous prime is 12080533. The next prime is 12080581. The reversal of 12080545 is 54508021.
It is not a de Polignac number, because 12080545 - 25 = 12080513 is a prime.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8485 + ... + 9805.
It is an arithmetic number, because the mean of its divisors is an integer number (951840).
Almost surely, 212080545 is an apocalyptic number.
It is an amenable number.
12080545 is a deficient number, since it is larger than the sum of its proper divisors (3148895).
12080545 is a wasteful number, since it uses less digits than its factorization.
12080545 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1416.
The product of its (nonzero) digits is 1600, while the sum is 25.
The square root of 12080545 is about 3475.7078415770. The cubic root of 12080545 is about 229.4539345524.
Adding to 12080545 its reverse (54508021), we get a palindrome (66588566).
The spelling of 12080545 in words is "twelve million, eighty thousand, five hundred forty-five".
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