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12448985 = 52489797
BaseRepresentation
bin101111011111…
…010011011001
3212102110210112
4233133103121
511141331420
61122454105
7210546263
oct57372331
925373715
1012448985
11703311a
124204335
13276b483
141920b33
15115d8c5
hexbdf4d9

12448985 has 4 divisors (see below), whose sum is σ = 14938788. Its totient is φ = 9959184.

The previous prime is 12448967. The next prime is 12448987. The reversal of 12448985 is 58984421.

12448985 = T2229 + T2230 + ... + T2233.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58984421 = 97760373.

It can be written as a sum of positive squares in 2 ways, for example, as 9223369 + 3225616 = 3037^2 + 1796^2 .

It is a cyclic number.

It is not a de Polignac number, because 12448985 - 212 = 12444889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12448987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1244894 + ... + 1244903.

It is an arithmetic number, because the mean of its divisors is an integer number (3734697).

Almost surely, 212448985 is an apocalyptic number.

It is an amenable number.

12448985 is a deficient number, since it is larger than the sum of its proper divisors (2489803).

12448985 is an equidigital number, since it uses as much as digits as its factorization.

12448985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2489802.

The product of its digits is 92160, while the sum is 41.

The square root of 12448985 is about 3528.3119193178. The cubic root of 12448985 is about 231.7632903250.

The spelling of 12448985 in words is "twelve million, four hundred forty-eight thousand, nine hundred eighty-five".

Divisors: 1 5 2489797 12448985