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12444131143 = 59419503383
BaseRepresentation
bin10111001011011101…
…00101111101000111
31012010020211100202001
423211232211331013
5200441144144033
65414452530131
7620243240503
oct134556457507
935106740661
1012444131143
115306429a04
1224b3620947
131234188112
148609cd303
154cc74ee7d
hex2e5ba5f47

12444131143 has 8 divisors (see below), whose sum is σ = 12685276800. Its totient is φ = 12203993208.

The previous prime is 12444131123. The next prime is 12444131207. The reversal of 12444131143 is 34113144421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12444131143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12444131123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226971 + ... + 276412.

It is an arithmetic number, because the mean of its divisors is an integer number (1585659600).

Almost surely, 212444131143 is an apocalyptic number.

12444131143 is a deficient number, since it is larger than the sum of its proper divisors (241145657).

12444131143 is an equidigital number, since it uses as much as digits as its factorization.

12444131143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503861.

The product of its digits is 4608, while the sum is 28.

Adding to 12444131143 its reverse (34113144421), we get a palindrome (46557275564).

The spelling of 12444131143 in words is "twelve billion, four hundred forty-four million, one hundred thirty-one thousand, one hundred forty-three".

Divisors: 1 59 419 24721 503383 29699597 210917477 12444131143