Base | Representation |
---|---|
bin | 111111101000… |
… | …010001110000 |
3 | 1011101102201120 |
4 | 333220101300 |
5 | 13232230143 |
6 | 1353302240 |
7 | 261530610 |
oct | 77502160 |
9 | 34342646 |
10 | 16680048 |
11 | 9462a70 |
12 | 5704980 |
13 | 35c0268 |
14 | 2302a40 |
15 | 16e7383 |
hex | fe8470 |
16680048 has 80 divisors (see below), whose sum is σ = 53734656. Its totient is φ = 4331520.
The previous prime is 16680047. The next prime is 16680061. The reversal of 16680048 is 84008661.
16680048 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.
It is a Harshad number since it is a multiple of its sum of digits (33).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (16680047) 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, 1440 + ... + 5952.
Almost surely, 216680048 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 16680048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26867328).
16680048 is an abundant number, since it is smaller than the sum of its proper divisors (37054608).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
16680048 is a wasteful number, since it uses less digits than its factorization.
16680048 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4542 (or 4536 counting only the distinct ones).
The product of its (nonzero) digits is 9216, while the sum is 33.
The square root of 16680048 is about 4084.1214477535. The cubic root of 16680048 is about 255.5048207903.
The spelling of 16680048 in words is "sixteen million, six hundred eighty thousand, forty-eight".
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