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9806383481 = 31316334951
BaseRepresentation
bin10010010001000000…
…11000100101111001
3221022102102220012012
421020200120211321
5130040413232411
64301024455305
7465003612206
oct111040304571
927272386165
109806383481
1141824a2064
121a9817a535
13c0385989b
14690562cad
153c5db518b
hex248818979

9806383481 has 4 divisors (see below), whose sum is σ = 10122718464. Its totient is φ = 9490048500.

The previous prime is 9806383463. The next prime is 9806383501. The reversal of 9806383481 is 1843836089.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1843836089 = 1847998287.

It is a cyclic number.

It is not a de Polignac number, because 9806383481 - 218 = 9806121337 is a prime.

It is a super-2 number, since 2×98063834812 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9806383441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158167445 + ... + 158167506.

It is an arithmetic number, because the mean of its divisors is an integer number (2530679616).

Almost surely, 29806383481 is an apocalyptic number.

It is an amenable number.

9806383481 is a deficient number, since it is larger than the sum of its proper divisors (316334983).

9806383481 is a wasteful number, since it uses less digits than its factorization.

9806383481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316334982.

The product of its (nonzero) digits is 995328, while the sum is 50.

The square root of 9806383481 is about 99027.1855653790. The cubic root of 9806383481 is about 2140.4395027812.

The spelling of 9806383481 in words is "nine billion, eight hundred six million, three hundred eighty-three thousand, four hundred eighty-one".

Divisors: 1 31 316334951 9806383481