81122969 is an odd 8-digits composite number following 81122968
and preceding 81122970 . In scientific notation, it is written as 8.1122969 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 79008160 positive integers (up to 81122969) that are relatively prime to 81122969.
81122969 has 8 divisors, whose sum is 83244672
The reverse of 81122969 is 96922118
Previous prime number is 743
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
eighty-one million one hundred twenty-two thousand nine hundred sixty-nine
Scientific notation
8.1122969 × 10^7
Engineering notation
8.1122969 × 10^6
Prime Factorization
41 × 743 × 2663
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81122969
Product of the distinct prime numbers
The prime factorization of 81122969 is 41 × 743 × 2663.
Since it has a total of 3 prime factors.
3 , 4 , 97 , 52 , 290 , 348 , 9330 , 1094 , 22088 , 9839 , 770308 , 195411 , 3513004 , 9243849 , 90630167 , 27026347 , 28857188 , 61176662 , 501781164 , 7732013479
n×2
162245938
n×3
243368907
n×4
324491876
n×5
405614845
n÷2
40561484.5
n÷3
27040989.666667
n÷3
20280742.25
n÷5
16224593.8
n2
6580936099374961
n3
5.3386507518058E+23
n4
4.3308719944057E+31
n5
3.5133319454514E+39
2 √n
9006.829020249
3 √n
432.89371345629
4 √n
94.904315077077
5 √n
38.179370842676
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81122968
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81122969 can be divided by 8 positive divisors.
The sum of these divisors (counting 81122969) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110101011101011010011001
3
Ternary
12122122110210102
4
Quaternary
10311131122121
5
Quinary
131231413334
6
Senary
12014425145
8
Octal
465353231
10
Decimal
81122969
12
Duodecimal
232021b5
16
Hexadecimal
4d5d699
20
Vigesimal
1570789
36
Base36
1caqvt
md5
82408eb8329281a90d99d2db192965b6
sha1
3cd3897ee2be8f833b8a38f17555c9224c967b41
sha256
a7fe76bfbb81cd0a254a5bae3209f51722162413d775bab6cbb7e89680c1ffb5
sha512
37507328d6f20ba36d19084337bf6a40fb24376bd23ac31ad8c22df05efff91d6662ce3460933c5d02d972e603e532d7bb6080c3b2646c74b4fec0b31e5f19c6
ripemd-160
f09c9cb0cd2e09f1384d146bc8d2590da46ef9c7
Diameter
162245938
Circumference
509710646.89559
Area
2.067462050354E+16
Volume
2.2362487975939E+24
Surface area
8.2698482014161E+16
Circumference
509710646.89559
Perimeter
324491876
Area
6580936099374961
Diagonal
114725202.97977
Surface area
39485616596249766
Volume
5.3386507518058E+23
Space diagonal
140509103.96883
Perimeter
243368907
Area
2.8496289213704E+15
Altitude
70254551.984417
Surface area
2.8496289213704E+15
Volume
6.2916602483142E+22
Height
38241734.326591