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9805879137 = 361239224201
BaseRepresentation
bin10010010000111100…
…11101011101100001
3221022101111021100210
421020132131131201
5130040301113022
64301010004333
7464666411625
oct111036353541
927271437323
109805879137
11418218814a
121a97b766a9
13c03711162
14690471185
153c5d15a0c
hex24879d761

9805879137 has 16 divisors (see below), whose sum is σ = 13344503040. Its totient is φ = 6403152000.

The previous prime is 9805879091. The next prime is 9805879151. The reversal of 9805879137 is 7319785089.

9805879137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9805879137 - 26 = 9805879073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9805875137) 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 15 ways as a sum of consecutive naturals, for example, 68364 + ... + 155837.

It is an arithmetic number, because the mean of its divisors is an integer number (834031440).

Almost surely, 29805879137 is an apocalyptic number.

It is an amenable number.

9805879137 is a deficient number, since it is larger than the sum of its proper divisors (3538623903).

9805879137 is a wasteful number, since it uses less digits than its factorization.

9805879137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224504.

The product of its (nonzero) digits is 3810240, while the sum is 57.

The square root of 9805879137 is about 99024.6390399884. The cubic root of 9805879137 is about 2140.4028077607.

The spelling of 9805879137 in words is "nine billion, eight hundred five million, eight hundred seventy-nine thousand, one hundred thirty-seven".

Divisors: 1 3 61 183 239 717 14579 43737 224201 672603 13676261 41028783 53584039 160752117 3268626379 9805879137