Base | Representation |
---|---|
bin | 11000011101011000… |
… | …00111100110110000 |
3 | 1020220010221121121001 |
4 | 30032230013212300 |
5 | 203343111122100 |
6 | 10011002211344 |
7 | 643256422402 |
oct | 141654074660 |
9 | 36803847531 |
10 | 13131348400 |
11 | 5629338455 |
12 | 26657b3b54 |
13 | 1313670151 |
14 | 8c7d9ab72 |
15 | 51cc49d6a |
hex | 30eb079b0 |
13131348400 has 120 divisors (see below), whose sum is σ = 33630387200. Its totient is φ = 4912876800.
The previous prime is 13131348389. The next prime is 13131348407. The reversal of 13131348400 is 484313131.
It is not an unprimeable number, because it can be changed into a prime (13131348407) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 589465 + ... + 611335.
Almost surely, 213131348400 is an apocalyptic number.
13131348400 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 13131348400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16815193600).
13131348400 is an abundant number, since it is smaller than the sum of its proper divisors (20499038800).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13131348400 is a wasteful number, since it uses less digits than its factorization.
13131348400 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 21987 (or 21976 counting only the distinct ones).
The product of its (nonzero) digits is 3456, while the sum is 28.
The spelling of 13131348400 in words is "thirteen billion, one hundred thirty-one million, three hundred forty-eight thousand, four hundred".
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