Base | Representation |
---|---|
bin | 11000010011010111… |
… | …10101011100111000 |
3 | 1020200021221222112010 |
4 | 30021223311130320 |
5 | 203210112403320 |
6 | 5554402445520 |
7 | 641216652645 |
oct | 141153653470 |
9 | 36607858463 |
10 | 13047387960 |
11 | 5595a01762 |
12 | 26416638a0 |
13 | 12cc154209 |
14 | 8bab82dcc |
15 | 5156b2ae0 |
hex | 309af5738 |
13047387960 has 128 divisors (see below), whose sum is σ = 39437798400. Its totient is φ = 3453135360.
The previous prime is 13047387887. The next prime is 13047387979. The reversal of 13047387960 is 6978374031.
It is a congruent number.
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, 12557121 + ... + 12558159.
It is an arithmetic number, because the mean of its divisors is an integer number (308107800).
Almost surely, 213047387960 is an apocalyptic number.
13047387960 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 13047387960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19718899200).
13047387960 is an abundant number, since it is smaller than the sum of its proper divisors (26390410440).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13047387960 is a wasteful number, since it uses less digits than its factorization.
13047387960 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1741 (or 1737 counting only the distinct ones).
The product of its (nonzero) digits is 762048, while the sum is 48.
The spelling of 13047387960 in words is "thirteen billion, forty-seven million, three hundred eighty-seven thousand, nine hundred sixty".
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