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16680282 = 232780047
BaseRepresentation
bin111111101000…
…010101011010
31011101110001020
4333220111122
513232232112
61353303310
7261531363
oct77502532
934343036
1016680282
119463163
125704b36
1335c03b8
142302b6a
1516e748c
hexfe855a

16680282 has 8 divisors (see below), whose sum is σ = 33360576. Its totient is φ = 5560092.

The previous prime is 16680241. The next prime is 16680289. The reversal of 16680282 is 28208661.

It is a sphenic number, since it is the product of 3 distinct primes.

16680282 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (16680289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1390018 + ... + 1390029.

It is an arithmetic number, because the mean of its divisors is an integer number (4170072).

Almost surely, 216680282 is an apocalyptic number.

16680282 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16680282 is a wasteful number, since it uses less digits than its factorization.

16680282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2780052.

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 16680282 is about 4084.1500951850. The cubic root of 16680282 is about 255.5060155880.

The spelling of 16680282 in words is "sixteen million, six hundred eighty thousand, two hundred eighty-two".

Divisors: 1 2 3 6 2780047 5560094 8340141 16680282