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803006161 = 1097367029
BaseRepresentation
bin101111110111001…
…110011011010001
32001221222221100221
4233313032123101
53121032144121
6211403113041
725620303556
oct5767163321
92057887327
10803006161
11382304461
121a4b12781
13ca496299
147890ca2d
154a76cb41
hex2fdce6d1

803006161 has 4 divisors (see below), whose sum is σ = 810373300. Its totient is φ = 795639024.

The previous prime is 803006131. The next prime is 803006167. The reversal of 803006161 is 161600308.

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 532732561 + 270273600 = 23081^2 + 16440^2 .

It is a cyclic number.

It is not a de Polignac number, because 803006161 - 217 = 802875089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (803006167) 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, 3683406 + ... + 3683623.

It is an arithmetic number, because the mean of its divisors is an integer number (202593325).

Almost surely, 2803006161 is an apocalyptic number.

It is an amenable number.

803006161 is a deficient number, since it is larger than the sum of its proper divisors (7367139).

803006161 is a wasteful number, since it uses less digits than its factorization.

803006161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7367138.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 803006161 is about 28337.3633388853. The cubic root of 803006161 is about 929.4790935727.

Adding to 803006161 its reverse (161600308), we get a palindrome (964606469).

The spelling of 803006161 in words is "eight hundred three million, six thousand, one hundred sixty-one".

Divisors: 1 109 7367029 803006161