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16940341540 = 225847017077
BaseRepresentation
bin11111100011011100…
…10001100100100100
31121201121020111220001
433301232101210210
5234143211412130
611440550151044
71136540345563
oct176156214444
947647214801
1016940341540
117203421371
123349352484
13179c835a45
14b69bcdbda
156923406ca
hex3f1b91924

16940341540 has 12 divisors (see below), whose sum is σ = 35574717276. Its totient is φ = 6776136608.

The previous prime is 16940341519. The next prime is 16940341541. The reversal of 16940341540 is 4514304961.

16940341540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 5429626596 + 11510714944 = 73686^2 + 107288^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 16940341540.

It is not an unprimeable number, because it can be changed into a prime (16940341541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 423508519 + ... + 423508558.

It is an arithmetic number, because the mean of its divisors is an integer number (2964559773).

Almost surely, 216940341540 is an apocalyptic number.

16940341540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16940341540 is an abundant number, since it is smaller than the sum of its proper divisors (18634375736).

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

16940341540 is a wasteful number, since it uses less digits than its factorization.

16940341540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847017086 (or 847017084 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The spelling of 16940341540 in words is "sixteen billion, nine hundred forty million, three hundred forty-one thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 847017077 1694034154 3388068308 4235085385 8470170770 16940341540