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12398840182120 = 2357312139331501
BaseRepresentation
bin1011010001101101010001…
…1101101111010101101000
31121220022120111020121202111
42310123110131233111220
53111120311041311440
642211540515212104
72416533550432210
oct264332435572550
947808514217674
1012398840182120
113a50356055927
121482b8a5a7034
136bc289965152
1430c16db11240
151677c7ab94ea
hexb46d476f568

12398840182120 has 192 divisors, whose sum is σ = 33181493788800. Its totient is φ = 4084292160000.

The previous prime is 12398840182093. The next prime is 12398840182123. The reversal of 12398840182120 is 2128104889321.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12398840182123) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 37236370 + ... + 37567870.

It is an arithmetic number, because the mean of its divisors is an integer number (172820280150).

Almost surely, 212398840182120 is an apocalyptic number.

12398840182120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12398840182120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16590746894400).

12398840182120 is an abundant number, since it is smaller than the sum of its proper divisors (20782653606680).

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

12398840182120 is a wasteful number, since it uses less digits than its factorization.

12398840182120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331720 (or 331685 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 49.

The spelling of 12398840182120 in words is "twelve trillion, three hundred ninety-eight billion, eight hundred forty million, one hundred eighty-two thousand, one hundred twenty".