81109741 is an odd 8-digits prime number following 81109740
and preceding 81109742 . In scientific notation, it is written as 8.1109741 × 10^7.
The sum of its digits is 31. It has a total of 1 prime factors and 2 positive divisors.
There are 81109740 positive integers (up to 81109741) that are relatively prime to 81109741.
81109741 has 2 divisors, whose sum is 81109742
The reverse of 81109741 is 14790118
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
eighty-one million one hundred nine thousand seven hundred forty-one
Scientific notation
8.1109741 × 10^7
Engineering notation
8.1109741 × 10^6
Prime Factorization
81109741
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
81109741
Product of the distinct prime numbers
The prime factorization of 81109741 is 81109741.
Since it has a total of 1 prime factors.
9 , 7 , 86 , 60 , 326 , 307 , 818 , 9272 , 400 , 6588 , 773028 , 771478 , 2960216 , 236871 , 56580397 , 9083351 , 122476745 , 939232261 , 7798127492 , 9044881758
n×2
162219482
n×3
243329223
n×4
324438964
n×5
405548705
n÷2
40554870.5
n÷3
27036580.333333
n÷3
20277435.25
n÷5
16221948.2
n2
6578790085087081
n3
5.3360395989478E+23
n4
4.328047898364E+31
n5
3.510468440719E+39
2 √n
9006.0946586187
3 √n
432.87018280323
4 √n
94.900446040146
5 √n
38.178125647467
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
81109742
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
40554871
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
9006.0947141366
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.999999975342
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81109741 can be divided by 2 positive divisors.
The sum of these divisors (counting 81109741) is 81109742, the average is 40554871.
Base
System
Value
2
Binary
100110101011010001011101101
3
Ternary
12122121210122111
4
Quaternary
10311122023231
5
Quinary
131231002431
6
Senary
12014244021
8
Octal
465321355
10
Decimal
81109741
12
Duodecimal
231b6611
16
Hexadecimal
4d5a2ed
20
Vigesimal
156ie71
36
Base36
1cagod
md5
df65e198f234d8489819ac4c6cf197ac
sha1
17f005790eccf80b643c08d80a5c2b3bd57d84a4
sha256
4bef064bf0f5322a34730059b834c918b1019e309f13dfd2c04aa3ef76f2482a
sha512
1c99f1541928442edd5a379020f7a6e3de7644dec85406f826e529ccff4dcb9155b4151ba55f0e8e40ab2985c4f937edc21acb5e733975929ce08cb35a7e6af4
ripemd-160
293ab2be57dbb85a583573482fc5b59ed85eb8d4
Diameter
162219482
Circumference
509627532.92034
Area
2.0667878600819E+16
Volume
2.2351550404425E+24
Surface area
8.2671514403276E+16
Circumference
509627532.92034
Perimeter
324438964
Area
6578790085087081
Diagonal
114706495.76277
Surface area
39472740510522486
Volume
5.3360395989478E+23
Space diagonal
140486192.40075
Perimeter
243329223
Area
2.8486996699253E+15
Altitude
70243096.200376
Surface area
2.8486996699253E+15
Volume
6.2885829751599E+22
Height
38235498.58759