| Base | Representation |
|---|---|
| bin | 11000101010101111… |
| … | …10000111010000000 |
| 3 | 1021011221220010021100 |
| 4 | 30111113300322000 |
| 5 | 204110310444211 |
| 6 | 10030045054400 |
| 7 | 646120331211 |
| oct | 142527607200 |
| 9 | 37157803240 |
| 10 | 13243453056 |
| 11 | 5686647329 |
| 12 | 2697257400 |
| 13 | 1330961472 |
| 14 | 8d8c1d408 |
| 15 | 5279e1156 |
| hex | 3155f0e80 |
13243453056 has 96 divisors (see below), whose sum is σ = 38153196900. Its totient is φ = 4409413632.
The previous prime is 13243453049. The next prime is 13243453057. The reversal of 13243453056 is 65035434231.
13243453056 is a `hidden beast` number, since 1 + 3 + 2 + 4 + 345 + 305 + 6 = 666.
It can be written as a sum of positive squares in 2 ways, for example, as 13243406400 + 46656 = 115080^2 + 216^2 .
It is a tau number, because it is divible by the number of its divisors (96).
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a self number, because there is not a number n which added to its sum of digits gives 13243453056.
It is not an unprimeable number, because it can be changed into a prime (13243453057) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1073290 + ... + 1085558.
Almost surely, 213243453056 is an apocalyptic number.
13243453056 is a gapful number since it is divisible by the number (16) 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 13243453056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19076598450).
13243453056 is an abundant number, since it is smaller than the sum of its proper divisors (24909743844).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13243453056 is a wasteful number, since it uses less digits than its factorization.
13243453056 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13226 (or 13211 counting only the distinct ones).
The product of its (nonzero) digits is 129600, while the sum is 36.
Adding to 13243453056 its reverse (65035434231), we get a palindrome (78278887287).
The spelling of 13243453056 in words is "thirteen billion, two hundred forty-three million, four hundred fifty-three thousand, fifty-six".
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