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12082540 = 2253471741
BaseRepresentation
bin101110000101…
…110101101100
3211201212010111
4232011311230
511043120130
61110545404
7204462031
oct56056554
924655114
1012082540
116902878
124068264
132670742
141867388
1510da02a
hexb85d6c

12082540 has 24 divisors (see below), whose sum is σ = 25461072. Its totient is φ = 4816320.

The previous prime is 12082519. The next prime is 12082549. The reversal of 12082540 is 4528021.

It is not an unprimeable number, because it can be changed into a prime (12082549) 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 7 ways as a sum of consecutive naturals, for example, 6070 + ... + 7810.

It is an arithmetic number, because the mean of its divisors is an integer number (1060878).

Almost surely, 212082540 is an apocalyptic number.

12082540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12082540 is an abundant number, since it is smaller than the sum of its proper divisors (13378532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12082540 is a wasteful number, since it uses less digits than its factorization.

12082540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2097 (or 2095 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 12082540 is about 3475.9948216302. The cubic root of 12082540 is about 229.4665646505.

The spelling of 12082540 in words is "twelve million, eighty-two thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 347 694 1388 1735 1741 3470 3482 6940 6964 8705 17410 34820 604127 1208254 2416508 3020635 6041270 12082540