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12137448 = 233505727
BaseRepresentation
bin101110010011…
…001111101000
3211211122110010
4232103033220
511101344243
61112051520
7205111101
oct56231750
924748403
1012137448
116940054
124093ba0
13268c72b
14187d3a8
1510eb433
hexb933e8

12137448 has 16 divisors (see below), whose sum is σ = 30343680. Its totient is φ = 4045808.

The previous prime is 12137441. The next prime is 12137449. The reversal of 12137448 is 84473121.

It is not an unprimeable number, because it can be changed into a prime (12137441) 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 3 ways as a sum of consecutive naturals, for example, 252840 + ... + 252887.

It is an arithmetic number, because the mean of its divisors is an integer number (1896480).

Almost surely, 212137448 is an apocalyptic number.

It is an amenable number.

12137448 is an abundant number, since it is smaller than the sum of its proper divisors (18206232).

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

12137448 is a wasteful number, since it uses less digits than its factorization.

12137448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505736 (or 505732 counting only the distinct ones).

The product of its digits is 5376, while the sum is 30.

The square root of 12137448 is about 3483.8840394020. The cubic root of 12137448 is about 229.8136360537.

The spelling of 12137448 in words is "twelve million, one hundred thirty-seven thousand, four hundred forty-eight".

Divisors: 1 2 3 4 6 8 12 24 505727 1011454 1517181 2022908 3034362 4045816 6068724 12137448