805138889 is an odd 9-digits composite number following 805138888
and preceding 805138890 . In scientific notation, it is written as 8.05138889 × 10^8.
The sum of its digits is 50. It has a total of 2 prime factors and 4 positive divisors.
There are 762763140 positive integers (up to 805138889) that are relatively prime to 805138889.
805138889 has 4 divisors, whose sum is 847514640
The reverse of 805138889 is 988831508
Previous prime number is 19
Is Prime? no Number parity odd Number length 9 Sum of Digits 50 Digital Root 5
Name
eight hundred five million one hundred thirty-eight thousand eight hundred eighty-nine
Scientific notation
8.05138889 × 10^8
Engineering notation
8.05138889 × 10^6
Prime Factorization
19 × 42375731
Composite number
ω Distinct Factors
2 Total number of distinct prime factors
Ω Total Factors
2 Total number of prime factors
rad Radical
805138889 Product of the distinct prime numbers
The prime factorization of 805138889 is 19 × 42375731.
Since it has a total of 2 prime factors.
6 , 6 , 67 , 20 , 173 , 298 , 5742 , 4975 , 67763 , 2889 , 1320 , 174542 , 3885851 , 1972654 , 34204000 , 3467978 , 840939612 , 433025661 , 1923585639 , 2453803753
n×2
1610277778
n×3
2415416667
n×4
3220555556
n×5
4025694445
n÷2
402569444.5
n÷3
268379629.66667
n÷3
201284722.25
n÷5
161027777.8
n2
648248630580154321
n3
5.2193018222108E+26
n4
4.2022628704905E+35
n5
3.3834052588326E+44
2 √n28374.969409675
3 √n930.30124322164
4 √n168.44871447914
5 √n60.419087346206
4 divisors
τ Total Divisors
4 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-805138888 Sum of the proper positive divisors of n
A Arithmetic Mean
0.25 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
1 Returns the nth root of the product of n divisors
H Harmonic Mean
4 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 805138889 can be divided by 4 positive divisors.
The sum of these divisors (counting 805138889) is 1, the average is 0.25.
Base
System
Value
2
Binary
101111111111010111000111001001
3
Ternary
2002010000021220212
4
Quaternary
233333113013021
5
Quinary
3122103421024
6
Senary
211520530505
8
Octal
5777270711
10
Decimal
805138889
12
Duodecimal
1a5780a35
16
Hexadecimal
2ffd71c9
20
Vigesimal
cbc2749
36
Base36
dbcx55
md5
e8f070cf7261a536260f1372c8aa32b6
sha1
9fdfb3174f9ef87a4f16c0b88e783f5b51a0eed7
sha256
8e389255457047758f0f0066cc3ecf77e20719ed99215713242cc9e2e8d1cb3a
sha512
56d8acc163ab7f2da95d951e7062183b4610059270598398012de43c5d82515cc46e7bed8d193e7d08f4a6be62606d042ca1d8d629c86246c5fd8c3bc5d20cac
ripemd-160
0b1cd1f847d9bb43bd273eae9eea2b9ec2cab9ca
Diameter
1610277778
Circumference
5058836837.6037
Area
2.0365331355303E+18
Volume
2.18625603487E+27
Surface area
8.146132542121E+18
Circumference
5058836837.6037
Perimeter
3220555556
Area
648248630580154321
Diagonal
1138638336.4178
Surface area
3889491783480925926
Volume
5.2193018222108E+26
Space diagonal
1394541462.8976
Perimeter
2415416667
Area
2.8069989102544E+17
Altitude
697270731.44878
Surface area
2.8069989102544E+17
Volume
6.1510061859076E+25
Height
379546112.13927