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16880016 = 243351667
BaseRepresentation
bin100000001100…
…1000110010000
31011202121000210
41000121012100
513310130031
61401444120
7263322606
oct100310620
934677023
1016880016
11958a22a
1257a0640
13366029a
142355876
151736746
hex1019190

16880016 has 20 divisors (see below), whose sum is σ = 43606832. Its totient is φ = 5626656.

The previous prime is 16880011. The next prime is 16880041. The reversal of 16880016 is 61008861.

It is not an unprimeable number, because it can be changed into a prime (16880011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175786 + ... + 175881.

Almost surely, 216880016 is an apocalyptic number.

16880016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16880016 is an abundant number, since it is smaller than the sum of its proper divisors (26726816).

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

16880016 is a wasteful number, since it uses less digits than its factorization.

16880016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351678 (or 351672 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 16880016 is about 4108.5296640039. The cubic root of 16880016 is about 256.5218035264.

Adding to 16880016 its reverse (61008861), we get a palindrome (77888877).

The spelling of 16880016 in words is "sixteen million, eight hundred eighty thousand, sixteen".

Divisors: 1 2 3 4 6 8 12 16 24 48 351667 703334 1055001 1406668 2110002 2813336 4220004 5626672 8440008 16880016