Base | Representation |
---|---|
bin | 111110011111… |
… | …000100110000 |
3 | 1010211012102101 |
4 | 332133010300 |
5 | 13143131313 |
6 | 1343030144 |
7 | 256141465 |
oct | 76370460 |
9 | 33735371 |
10 | 16380208 |
11 | 9278769 |
12 | 559b354 |
13 | 3516940 |
14 | 226566c |
15 | 16885dd |
hex | f9f130 |
16380208 has 40 divisors (see below), whose sum is σ = 34765136. Its totient is φ = 7430400.
The previous prime is 16380191. The next prime is 16380253. The reversal of 16380208 is 80208361.
It is a super-2 number, since 2×163802082 = 536622428246528, which contains 22 as substring.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12043 + ... + 13333.
Almost surely, 216380208 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 16380208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17382568).
16380208 is an abundant number, since it is smaller than the sum of its proper divisors (18384928).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
16380208 is a wasteful number, since it uses less digits than its factorization.
16380208 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1373 (or 1367 counting only the distinct ones).
The product of its (nonzero) digits is 2304, while the sum is 28.
The square root of 16380208 is about 4047.2469655310. The cubic root of 16380208 is about 253.9645723213.
Adding to 16380208 its reverse (80208361), we get a palindrome (96588569).
The spelling of 16380208 in words is "sixteen million, three hundred eighty thousand, two hundred eight".
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