| Base | Representation |
|---|---|
| bin | 111111011110… |
| … | …110011000000 |
| 3 | 1011022110110100 |
| 4 | 333132303000 |
| 5 | 13230004331 |
| 6 | 1352402400 |
| 7 | 261306444 |
| oct | 77366300 |
| 9 | 34273410 |
| 10 | 16641216 |
| 11 | 9436879 |
| 12 | 56a6400 |
| 13 | 35a8697 |
| 14 | 22d2824 |
| 15 | 16daae6 |
| hex | fdecc0 |
16641216 has 84 divisors (see below), whose sum is σ = 48262032. Its totient is φ = 5481984.
The previous prime is 16641211. The next prime is 16641217. The reversal of 16641216 is 61214661.
16641216 is a `hidden beast` number, since 1 + 6 + 641 + 2 + 16 = 666.
It is a super-3 number, since 3×166412163 (a number of 23 digits) contains 333 as substring.
It is a nude number because it is divisible by every one of its digits.
It is a self number, because there is not a number n which added to its sum of digits gives 16641216.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (16641211) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96106 + ... + 96278.
It is an arithmetic number, because the mean of its divisors is an integer number (574548).
Almost surely, 216641216 is an apocalyptic number.
16641216 is a gapful number since it is divisible by the number (16) 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 16641216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24131016).
16641216 is an abundant number, since it is smaller than the sum of its proper divisors (31620816).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
16641216 is a wasteful number, since it uses less digits than its factorization.
16641216 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 358 (or 345 counting only the distinct ones).
The product of its digits is 1728, while the sum is 27.
The square root of 16641216 is about 4079.3646564140. The cubic root of 16641216 is about 255.3063906533.
Adding to 16641216 its reverse (61214661), we get a palindrome (77855877).
The spelling of 16641216 in words is "sixteen million, six hundred forty-one thousand, two hundred sixteen".
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