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12448379 = 41303619
BaseRepresentation
bin101111011111…
…001001111011
3212102102222002
4233133021323
511141322004
61122451215
7210544436
oct57371173
925372862
1012448379
117032719
124203b0b
13276b108
14192081d
15115d61e
hexbdf27b

12448379 has 4 divisors (see below), whose sum is σ = 12752040. Its totient is φ = 12144720.

The previous prime is 12448357. The next prime is 12448417. The reversal of 12448379 is 97384421.

12448379 = T387 + T388 + ... + T509.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12448379 - 212 = 12444283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12448339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151769 + ... + 151850.

It is an arithmetic number, because the mean of its divisors is an integer number (3188010).

Almost surely, 212448379 is an apocalyptic number.

12448379 is a deficient number, since it is larger than the sum of its proper divisors (303661).

12448379 is an equidigital number, since it uses as much as digits as its factorization.

12448379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303660.

The product of its digits is 48384, while the sum is 38.

The square root of 12448379 is about 3528.2260415115. The cubic root of 12448379 is about 231.7595296213.

The spelling of 12448379 in words is "twelve million, four hundred forty-eight thousand, three hundred seventy-nine".

Divisors: 1 41 303619 12448379