Base | Representation |
---|---|
bin | 11000101010111011… |
… | …10111110100100000 |
3 | 1021012001220110200110 |
4 | 30111131313310200 |
5 | 204111213213430 |
6 | 10030143251320 |
7 | 646140050325 |
oct | 142535676440 |
9 | 37161813613 |
10 | 13245054240 |
11 | 5687540320 |
12 | 26978a9b40 |
13 | 13310a2202 |
14 | 8d9118b4c |
15 | 527c0a7b0 |
hex | 315777d20 |
13245054240 has 192 divisors, whose sum is σ = 45844807680. Its totient is φ = 3187645440.
The previous prime is 13245054233. The next prime is 13245054253. The reversal of 13245054240 is 4245054231.
It is a Harshad number since it is a multiple of its sum of digits (30).
It is a junction number, because it is equal to n+sod(n) for n = 13245054198 and 13245054207.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 724897 + ... + 742943.
It is an arithmetic number, because the mean of its divisors is an integer number (238775040).
Almost surely, 213245054240 is an apocalyptic number.
13245054240 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 13245054240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22922403840).
13245054240 is an abundant number, since it is smaller than the sum of its proper divisors (32599753440).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13245054240 is a wasteful number, since it uses less digits than its factorization.
13245054240 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 18215 (or 18207 counting only the distinct ones).
The product of its (nonzero) digits is 19200, while the sum is 30.
Subtracting from 13245054240 its reverse (4245054231), we obtain a palindrome (9000000009).
The spelling of 13245054240 in words is "thirteen billion, two hundred forty-five million, fifty-four thousand, two hundred forty".
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