81129097 is an odd 8-digits composite number following 81129096
and preceding 81129098 . In scientific notation, it is written as 8.1129097 × 10^7.
The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors.
There are 67217040 positive integers (up to 81129097) that are relatively prime to 81129097.
81129097 has 8 divisors, whose sum is 92773952
The reverse of 81129097 is 79092118
Previous prime number is 3901
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
eighty-one million one hundred twenty-nine thousand ninety-seven
Scientific notation
8.1129097 × 10^7
Engineering notation
8.1129097 × 10^6
Prime Factorization
7 × 3901 × 2971
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81129097
Product of the distinct prime numbers
The prime factorization of 81129097 is 7 × 3901 × 2971.
Since it has a total of 3 prime factors.
9 , 5 , 94 , 31 , 930 , 40 , 527 , 6469 , 68176 , 50628 , 451504 , 287805 , 8972595 , 999925 , 59898628 , 31207579 , 660049692 , 890076661 , 1350845415 , 4518223717
n×2
162258194
n×3
243387291
n×4
324516388
n×5
405645485
n÷2
40564548.5
n÷3
27043032.333333
n÷3
20282274.25
n÷5
16225819.4
n2
6581930380035409
n3
5.3398606824914E+23
n4
4.3321807527633E+31
n5
3.5146591251247E+39
2 √n
9007.1692001427
3 √n
432.90461339382
4 √n
94.906107285795
5 √n
38.179947636445
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
-81129096
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 81129097 can be divided by 8 positive divisors.
The sum of these divisors (counting 81129097) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110101011110111010001001
3
Ternary
12122122210012101
4
Quaternary
10311132322021
5
Quinary
131232112342
6
Senary
12014513401
8
Octal
465367211
10
Decimal
81129097
12
Duodecimal
23205861
16
Hexadecimal
4d5ee89
20
Vigesimal
15712eh
36
Base36
1cavm1
md5
df3da9fc8366b79a341e4fa8bffe5019
sha1
9d8471c28e8167c4eab912c17906b899df5b01c6
sha256
aa2a057e120291ddd4154015bf2b3ff15e99df3db145b670ad48f7afa7ad3680
sha512
a7a7da4aea475a647ebf49fa2b300c2ddfcf882950405f24d4fea60e0e07a7eca47d5b5c8e6398fed3a300071b2c23fb6e3f3b5547c909d86c4b9bce49a0813a
ripemd-160
3611028fdd2c5e159fb8c436cae3b75a086c0b83
Diameter
162258194
Circumference
509749150.25515
Area
2.0677744128359E+16
Volume
2.2367556121744E+24
Surface area
8.2710976513435E+16
Circumference
509749150.25515
Perimeter
324516388
Area
6581930380035409
Diagonal
114733869.28048
Surface area
39491582280212454
Volume
5.3398606824914E+23
Space diagonal
140519717.97618
Perimeter
243387291
Area
2.8500594575256E+15
Altitude
70259858.988092
Surface area
2.8500594575256E+15
Volume
6.2930861653018E+22
Height
38244623.093494