81089969 is an odd 8-digits prime number following 81089968
and preceding 81089970 . In scientific notation, it is written as 8.1089969 × 10^7.
The sum of its digits is 50. It has a total of 1 prime factors and 2 positive divisors.
There are 81089968 positive integers (up to 81089969) that are relatively prime to 81089969.
81089969 has 2 divisors, whose sum is 81089970
The reverse of 81089969 is 96998018
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 50
Digital Root 5
Name
eighty-one million eighty-nine thousand nine hundred sixty-nine
Scientific notation
8.1089969 × 10^7
Engineering notation
8.1089969 × 10^6
Prime Factorization
81089969
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
81089969
Product of the distinct prime numbers
The prime factorization of 81089969 is 81089969.
Since it has a total of 1 prime factors.
4 , 10 , 2 , 35 , 627 , 147 , 8196 , 4572 , 59761 , 35 , 880698 , 894627 , 104162 , 7637925 , 32876819 , 9985709 , 630397919 , 490154999 , 3827589119 , 45562275
n×2
162179938
n×3
243269907
n×4
324359876
n×5
405449845
n÷2
40544984.5
n÷3
27029989.666667
n÷3
20272492.25
n÷5
16217993.8
n2
6575583072420961
n3
5.3321382749954E+23
n4
4.3238292742309E+31
n5
3.5061918180868E+39
2 √n
9004.9968906158
3 √n
432.83500657289
4 √n
94.894662076514
5 √n
38.176264141054
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
81089970
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
40544985
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
9004.9969461405
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.999999975336
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81089969 can be divided by 2 positive divisors.
The sum of these divisors (counting 81089969) is 81089970, the average is 40544985.
Base
System
Value
2
Binary
100110101010101010110110001
3
Ternary
12122120210112012
4
Quaternary
10311111112301
5
Quinary
131224334334
6
Senary
12014012305
8
Octal
465252661
10
Decimal
81089969
12
Duodecimal
231a7095
16
Hexadecimal
4d555b1
20
Vigesimal
156g4i9
36
Base36
1ca1f5
md5
668f8dfd5277c0bd624fbb4703702f85
sha1
1515c1da6d5debcd398f0e79ea0b998478e35370
sha256
92ef873f1e9785ba89f8ea22011339cf6db129c022bf848eebb28b39bd944fde
sha512
2c7e17bec0765d5e6bf889cf70233eb15ff8d571a687cd2752962afa7c2278fde40881fbd2e259e5c15b26a6d15c04a4916f30c3ee0010e447d596493eadbcde
ripemd-160
c86ee6da54e252af9916c96e8052d935f7c62903
Diameter
162179938
Circumference
509503301.78045
Area
2.0657803473387E+16
Volume
2.2335208576867E+24
Surface area
8.2631213893548E+16
Circumference
509503301.78045
Perimeter
324359876
Area
6575583072420961
Diagonal
114678533.93221
Surface area
39453498434525766
Volume
5.3321382749954E+23
Space diagonal
140451946.29219
Perimeter
243269907
Area
2.8473109927057E+15
Altitude
70225973.146093
Surface area
2.8473109927057E+15
Volume
6.2839852207893E+22
Height
38226177.977405