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9680217811 = 11880019801
BaseRepresentation
bin10010000001111110…
…00110011011010011
3220222122001000102121
421000333012123103
5124311113432221
64240320355111
7461612331235
oct110077063323
926878030377
109680217811
114118259a10
121a61a75a97
13bb3684444
1467b8c0255
153b9c92a41
hex240fc66d3

9680217811 has 4 divisors (see below), whose sum is σ = 10560237624. Its totient is φ = 8800198000.

The previous prime is 9680217797. The next prime is 9680217863. The reversal of 9680217811 is 1187120869.

It is a happy number.

9680217811 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1187120869 = 11107920079.

It is not a de Polignac number, because 9680217811 - 211 = 9680215763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9680217871) 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, 440009890 + ... + 440009911.

It is an arithmetic number, because the mean of its divisors is an integer number (2640059406).

Almost surely, 29680217811 is an apocalyptic number.

9680217811 is a deficient number, since it is larger than the sum of its proper divisors (880019813).

9680217811 is a wasteful number, since it uses less digits than its factorization.

9680217811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880019812.

The product of its (nonzero) digits is 48384, while the sum is 43.

The square root of 9680217811 is about 98388.0979133147. The cubic root of 9680217811 is about 2131.2204582542.

The spelling of 9680217811 in words is "nine billion, six hundred eighty million, two hundred seventeen thousand, eight hundred eleven".

Divisors: 1 11 880019801 9680217811