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803081 = 7111311
BaseRepresentation
bin11000100000100001001
31111210121202
43010010021
5201144311
625113545
76553226
oct3040411
91453552
10803081
114a9404
123288b5
132216c6
1416c94d
1510ce3b
hexc4109

803081 has 4 divisors (see below), whose sum is σ = 814464. Its totient is φ = 791700.

The previous prime is 803059. The next prime is 803087. The reversal of 803081 is 180308.

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.

It is a cyclic number.

It is not a de Polignac number, because 803081 - 214 = 786697 is a prime.

It is a super-2 number, since 2×8030812 = 1289878185122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (803087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5585 + ... + 5726.

It is an arithmetic number, because the mean of its divisors is an integer number (203616).

2803081 is an apocalyptic number.

It is an amenable number.

803081 is a deficient number, since it is larger than the sum of its proper divisors (11383).

803081 is a wasteful number, since it uses less digits than its factorization.

803081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11382.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 803081 is about 896.1478672630. The cubic root of 803081 is about 92.9507968040.

Adding to 803081 its reverse (180308), we get a palindrome (983389).

The spelling of 803081 in words is "eight hundred three thousand, eighty-one".

Divisors: 1 71 11311 803081