| Base | Representation |
|---|---|
| bin | 1011000000101000111011… |
| … | …1000110101000001100000 |
| 3 | 1120212021201010112011222200 |
| 4 | 2300022032320311001200 |
| 5 | 3041314244431231143 |
| 6 | 41425124240133200 |
| 7 | 2356413266403636 |
| oct | 260121670650140 |
| 9 | 46767633464880 |
| 10 | 12105615102048 |
| 11 | 3947a65150206 |
| 12 | 1436196007200 |
| 13 | 69a729613700 |
| 14 | 2dbcb4699356 |
| 15 | 15ed650b41d3 |
| hex | b028ee35060 |
12105615102048 has 432 divisors, whose sum is σ = 38272087133280. Its totient is φ = 3625797427200.
The previous prime is 12105615102043. The next prime is 12105615102079. The reversal of 12105615102048 is 84020151650121.
12105615102048 is a `hidden beast` number, since 1 + 2 + 1 + 0 + 5 + 615 + 10 + 20 + 4 + 8 = 666.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12105615102043) 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 71 ways as a sum of consecutive naturals, for example, 919942893 + ... + 919956051.
It is an arithmetic number, because the mean of its divisors is an integer number (88592794290).
Almost surely, 212105615102048 is an apocalyptic number.
12105615102048 is a gapful number since it is divisible by the number (18) 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 12105615102048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19136043566640).
12105615102048 is an abundant number, since it is smaller than the sum of its proper divisors (26166472031232).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12105615102048 is a wasteful number, since it uses less digits than its factorization.
12105615102048 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13703 (or 13679 counting only the distinct ones).
The product of its (nonzero) digits is 19200, while the sum is 36.
Adding to 12105615102048 its reverse (84020151650121), we get a palindrome (96125766752169).
The spelling of 12105615102048 in words is "twelve trillion, one hundred five billion, six hundred fifteen million, one hundred two thousand, forty-eight".
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