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12444133013 = 131968748623
BaseRepresentation
bin10111001011011101…
…00110011010010101
31012010020211110022022
423211232212122111
5200441144224023
65414452542525
7620243246114
oct134556463225
935106743268
1012444133013
115306430354
1224b3621a45
131234188c20
148609cdc7b
154cc7507c8
hex2e5ba6695

12444133013 has 8 divisors (see below), whose sum is σ = 13402330368. Its totient is φ = 11486072304.

The previous prime is 12444132997. The next prime is 12444133019. The reversal of 12444133013 is 31033144421.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12444133013 - 24 = 12444132997 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 (12444133019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231620 + ... + 280242.

It is an arithmetic number, because the mean of its divisors is an integer number (1675291296).

Almost surely, 212444133013 is an apocalyptic number.

12444133013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12444133013 is a deficient number, since it is larger than the sum of its proper divisors (958197355).

12444133013 is a wasteful number, since it uses less digits than its factorization.

12444133013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68323.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 12444133013 its reverse (31033144421), we get a palindrome (43477277434).

The spelling of 12444133013 in words is "twelve billion, four hundred forty-four million, one hundred thirty-three thousand, thirteen".

Divisors: 1 13 19687 48623 255931 632099 957241001 12444133013