81252011 is an odd 8-digits prime number following 81252010
and preceding 81252012 . In scientific notation, it is written as 8.1252011 × 10^7.
The sum of its digits is 20. It has a total of 1 prime factors and 2 positive divisors.
There are 81252010 positive integers (up to 81252011) that are relatively prime to 81252011.
81252011 has 2 divisors, whose sum is 81252012
The reverse of 81252011 is 11025218
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
eighty-one million two hundred fifty-two thousand eleven
Scientific notation
8.1252011 × 10^7
Engineering notation
8.1252011 × 10^6
Prime Factorization
81252011
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
81252011
Product of the distinct prime numbers
The prime factorization of 81252011 is 81252011.
Since it has a total of 1 prime factors.
1 , 5 , 12 , 58 , 600 , 88 , 6427 , 5684 , 63818 , 515 , 785872 , 587387 , 6266909 , 7203993 , 73735765 , 92327131 , 856280515 , 527314344 , 6638331921 , 1589116093
n×2
162504022
n×3
243756033
n×4
325008044
n×5
406260055
n÷2
40626005.5
n÷3
27084003.666667
n÷3
20313002.75
n÷5
16250402.2
n2
6601889291544121
n3
5.3641678133733E+23
n4
4.3584942217805E+31
n5
3.5413642045155E+39
2 √n
9013.9897381792
3 √n
433.12312598834
4 √n
94.9420335688
5 √n
38.191509477741
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
81252012
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
40626006
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
9013.9897936485
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999753852
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81252011 can be divided by 2 positive divisors.
The sum of these divisors (counting 81252011) is 81252012, the average is 40626006.
Base
System
Value
2
Binary
100110101111100111010101011
3
Ternary
12122220000210202
4
Quaternary
10311330322223
5
Quinary
131300031021
6
Senary
12021302415
8
Octal
465747253
10
Decimal
81252011
12
Duodecimal
23264a0b
16
Hexadecimal
4d7ceab
20
Vigesimal
157ga0b
36
Base36
1cdigb
md5
b3564c408d044571ba7270eb748ee6dd
sha1
ceeee270b7868b394e5ab0fc2fcd4bee3aa7c7de
sha256
fa845ac0c744c5977401ef00b13b4e8a2686cff7d968d04781040bace99cfb57
sha512
a917c3070510dc1a480e1e90ef8ee50edfea06e4c976b6643dff8432a69c9f9e494d28d03c3e8f557783d6eacfae6685b3d81404f3c553a566356fdb0b9de148
ripemd-160
aab958b2c50c7afa3abab4a4fa749853fea920b8
Diameter
162504022
Circumference
510521441.69399
Area
2.0740446898128E+16
Volume
2.2469373593488E+24
Surface area
8.2961787592513E+16
Circumference
510521441.69399
Perimeter
325008044
Area
6601889291544121
Diagonal
114907695.92629
Surface area
39611335749264726
Volume
5.3641678133733E+23
Space diagonal
140732611.26915
Perimeter
243756033
Area
2.8587019197248E+15
Altitude
70366305.634573
Surface area
2.8587019197248E+15
Volume
6.3217323937647E+22
Height
38302565.308763