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12613794543252 = 22337127971135301
BaseRepresentation
bin1011011110001110000010…
…1111100011011010010100
31122122212102000210120012000
42313203200233203122110
53123131022400341002
642454410333155300
72441213405363550
oct267434057433224
948585360716160
1012613794543252
1140235311a6971
1214b877a32bb30
13706625211006
14318721d36860
1516d1a8d3a61c
hexb78e0be3694

12613794543252 has 192 divisors, whose sum is σ = 37707563335680. Its totient is φ = 3571855056000.

The previous prime is 12613794543227. The next prime is 12613794543269. The reversal of 12613794543252 is 25234549731621.

It is a happy number.

12613794543252 is a `hidden beast` number, since 1 + 2 + 6 + 1 + 3 + 7 + 94 + 543 + 2 + 5 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 93160002 + ... + 93295302.

It is an arithmetic number, because the mean of its divisors is an integer number (196393559040).

Almost surely, 212613794543252 is an apocalyptic number.

12613794543252 is a gapful number since it is divisible by the number (12) 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 12613794543252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18853781667840).

12613794543252 is an abundant number, since it is smaller than the sum of its proper divisors (25093768792428).

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

12613794543252 is a wasteful number, since it uses less digits than its factorization.

12613794543252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136419 (or 136411 counting only the distinct ones).

The product of its digits is 10886400, while the sum is 54.

The spelling of 12613794543252 in words is "twelve trillion, six hundred thirteen billion, seven hundred ninety-four million, five hundred forty-three thousand, two hundred fifty-two".