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16683350920 = 235417083773
BaseRepresentation
bin11111000100110011…
…11011101110001000
31121001200200001000221
433202121323232020
5233131414212140
611355250035424
71130300100025
oct174231735610
947050601027
1016683350920
117091353525
123297278b74
13175b5164a2
14b43a1454c
156799ca14a
hex3e267bb88

16683350920 has 16 divisors (see below), whose sum is σ = 37537539660. Its totient is φ = 6673340352.

The previous prime is 16683350861. The next prime is 16683350923. The reversal of 16683350920 is 2905338661.

It can be written as a sum of positive squares in 2 ways, for example, as 16627070916 + 56280004 = 128946^2 + 7502^2 .

It is not an unprimeable number, because it can be changed into a prime (16683350923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208541847 + ... + 208541926.

Almost surely, 216683350920 is an apocalyptic number.

16683350920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16683350920 is an abundant number, since it is smaller than the sum of its proper divisors (20854188740).

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

16683350920 is a wasteful number, since it uses less digits than its factorization.

16683350920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417083784 (or 417083780 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 43.

The spelling of 16683350920 in words is "sixteen billion, six hundred eighty-three million, three hundred fifty thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 417083773 834167546 1668335092 2085418865 3336670184 4170837730 8341675460 16683350920