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9805230937 = 80691215173
BaseRepresentation
bin10010010000110111…
…11111001101011001
3221022100021100012101
421020123333031121
5130040114342222
64300544043401
7464661042055
oct111033771531
927270240171
109805230937
114181885147
121a97903561
13c035450c8
14690342c65
153c5c38927
hex2486ff359

9805230937 has 4 divisors (see below), whose sum is σ = 9806454180. Its totient is φ = 9804007696.

The previous prime is 9805230907. The next prime is 9805230943. The reversal of 9805230937 is 7390325089.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 88003161 + 9717227776 = 9381^2 + 98576^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-9805230937 is a prime.

It is a super-2 number, since 2×98052309372 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9805230907) 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, 599518 + ... + 615655.

It is an arithmetic number, because the mean of its divisors is an integer number (2451613545).

Almost surely, 29805230937 is an apocalyptic number.

It is an amenable number.

9805230937 is a deficient number, since it is larger than the sum of its proper divisors (1223243).

9805230937 is a wasteful number, since it uses less digits than its factorization.

9805230937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1223242.

The product of its (nonzero) digits is 408240, while the sum is 46.

The square root of 9805230937 is about 99021.3660630876. The cubic root of 9805230937 is about 2140.3556442291.

The spelling of 9805230937 in words is "nine billion, eight hundred five million, two hundred thirty thousand, nine hundred thirty-seven".

Divisors: 1 8069 1215173 9805230937