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12115056 = 243383659
BaseRepresentation
bin101110001101…
…110001110000
3211210111201210
4232031301300
511100140211
61111400120
7204655602
oct56156160
924714653
1012115056
116925248
124083040
132682495
141875172
1510e49a6
hexb8dc70

12115056 has 40 divisors (see below), whose sum is σ = 31426560. Its totient is φ = 4021696.

The previous prime is 12115039. The next prime is 12115091. The reversal of 12115056 is 65051121.

12115056 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18055 + ... + 18713.

It is an arithmetic number, because the mean of its divisors is an integer number (785664).

Almost surely, 212115056 is an apocalyptic number.

12115056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12115056 is an abundant number, since it is smaller than the sum of its proper divisors (19311504).

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

12115056 is a wasteful number, since it uses less digits than its factorization.

12115056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053 (or 1047 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 12115056 is about 3480.6689012315. The cubic root of 12115056 is about 229.6722237144.

Adding to 12115056 its reverse (65051121), we get a palindrome (77166177).

The spelling of 12115056 in words is "twelve million, one hundred fifteen thousand, fifty-six".

Divisors: 1 2 3 4 6 8 12 16 24 48 383 659 766 1149 1318 1532 1977 2298 2636 3064 3954 4596 5272 6128 7908 9192 10544 15816 18384 31632 252397 504794 757191 1009588 1514382 2019176 3028764 4038352 6057528 12115056