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808043141 = 5315246097
BaseRepresentation
bin110000001010011…
…100001010000101
32002022110211210202
4300022130022011
53123324340031
6212103100245
726011152623
oct6012341205
92068424722
10808043141
11385134854
121a6741685
13cb53ab49
1479460513
154ae152cb
hex3029c285

808043141 has 4 divisors (see below), whose sum is σ = 823289292. Its totient is φ = 792796992.

The previous prime is 808043083. The next prime is 808043147. The reversal of 808043141 is 141340808.

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 321664225 + 486378916 = 17935^2 + 22054^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-808043141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (808043147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7622996 + ... + 7623101.

It is an arithmetic number, because the mean of its divisors is an integer number (205822323).

Almost surely, 2808043141 is an apocalyptic number.

It is an amenable number.

808043141 is a deficient number, since it is larger than the sum of its proper divisors (15246151).

808043141 is a wasteful number, since it uses less digits than its factorization.

808043141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15246150.

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 808043141 is about 28426.0996445168. The cubic root of 808043141 is about 931.4184778373.

Adding to 808043141 its reverse (141340808), we get a palindrome (949383949).

The spelling of 808043141 in words is "eight hundred eight million, forty-three thousand, one hundred forty-one".

Divisors: 1 53 15246097 808043141