Base | Representation |
---|---|
bin | 110100101011… |
… | …001101000000 |
3 | 221222112122000 |
4 | 310223031000 |
5 | 12013332243 |
6 | 1211544000 |
7 | 225240603 |
oct | 64531500 |
9 | 27875560 |
10 | 13808448 |
11 | 7881545 |
12 | 475b000 |
13 | 2b261a4 |
14 | 1b9633a |
15 | 132b5d3 |
hex | d2b340 |
13808448 has 112 divisors (see below), whose sum is σ = 41574720. Its totient is φ = 4492800.
The previous prime is 13808401. The next prime is 13808449. The reversal of 13808448 is 84480831.
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 (13808449) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105343 + ... + 105473.
Almost surely, 213808448 is an apocalyptic number.
13808448 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 13808448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20787360).
13808448 is an abundant number, since it is smaller than the sum of its proper divisors (27766272).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13808448 is a wasteful number, since it uses less digits than its factorization.
13808448 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 213 (or 197 counting only the distinct ones).
The product of its (nonzero) digits is 24576, while the sum is 36.
The square root of 13808448 is about 3715.9720128117. The cubic root of 13808448 is about 239.9099662289.
The spelling of 13808448 in words is "thirteen million, eight hundred eight thousand, four hundred forty-eight".
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