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808126093 = 17291639201
BaseRepresentation
bin110000001010110…
…000011010001101
32002022122001121001
4300022300122031
53123340013333
6212104540301
726011646515
oct6012603215
92068561531
10808126093
11385191105
121a6781691
13cb569828
1479482845
154ae2eb7d
hex302b068d

808126093 has 8 divisors (see below), whose sum is σ = 885169080. Its totient is φ = 734361600.

The previous prime is 808126087. The next prime is 808126103. The reversal of 808126093 is 390621808.

It can be written as a sum of positive squares in 4 ways, for example, as 466689609 + 341436484 = 21603^2 + 18478^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 808126093 - 29 = 808125581 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 (808126003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 819108 + ... + 820093.

It is an arithmetic number, because the mean of its divisors is an integer number (110646135).

Almost surely, 2808126093 is an apocalyptic number.

It is an amenable number.

808126093 is a deficient number, since it is larger than the sum of its proper divisors (77042987).

808126093 is a wasteful number, since it uses less digits than its factorization.

808126093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1639247.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 808126093 is about 28427.5586887091. The cubic root of 808126093 is about 931.4503492304.

The spelling of 808126093 in words is "eight hundred eight million, one hundred twenty-six thousand, ninety-three".

Divisors: 1 17 29 493 1639201 27866417 47536829 808126093