81072011 is an odd 8-digits prime number following 81072010
and preceding 81072012 . In scientific notation, it is written as 8.1072011 × 10^7.
The sum of its digits is 20. It has a total of 1 prime factors and 2 positive divisors.
There are 81072010 positive integers (up to 81072011) that are relatively prime to 81072011.
81072011 has 2 divisors, whose sum is 81072012
The reverse of 81072011 is 11027018
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 seventy-two thousand eleven
Scientific notation
8.1072011 × 10^7
Engineering notation
8.1072011 × 10^6
Prime Factorization
81072011
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
81072011
Product of the distinct prime numbers
The prime factorization of 81072011 is 81072011.
Since it has a total of 1 prime factors.
4 , 1 , 10 , 88 , 255 , 473 , 5309 , 6573 , 29893 , 96458 , 832880 , 720319 , 9663664 , 1735802 , 55807803 , 82693729 , 702560411 , 361804439 , 6605660634 , 1204834446
n×2
162144022
n×3
243216033
n×4
324288044
n×5
405360055
n÷2
40536005.5
n÷3
27024003.666667
n÷3
20268002.75
n÷5
16214402.2
n2
6572670967584121
n3
5.3285965298336E+23
n4
4.3200003648123E+31
n5
3.5023111709607E+39
2 √n
9003.9997223456
3 √n
432.80305266211
4 √n
94.88940785117
5 √n
38.174573105534
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
81072012
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
40536006
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
9003.9997778765
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999753306
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81072011 can be divided by 2 positive divisors.
The sum of these divisors (counting 81072011) is 81072012, the average is 40536006.
Base
System
Value
2
Binary
100110101010000111110001011
3
Ternary
12122112212220002
4
Quaternary
10311100332023
5
Quinary
131223301021
6
Senary
12013353215
8
Octal
465207613
10
Decimal
81072011
12
Duodecimal
2319880b
16
Hexadecimal
4d50f8b
20
Vigesimal
156e00b
36
Base36
1c9nkb
md5
a6bc34f0a861a5f979e1996484655359
sha1
338da68b99c1ed92736640b6b1aa163b9cc4a16e
sha256
4762c0d0a3bc96753e20cdafdb2070610ee17f3487538f3518f76cf9ae72e98e
sha512
cfcaa9d58c8110f408414d2100b0bb7d306da7a1cd3435d3ad9f78bf12b375052f757b39a8f2f102580206e38f53d6d666bf76bf6f9c9148d93314c674447b6f
ripemd-160
b94f58e8e6fccbce6a9e37f21b240b027c9b963a
Diameter
162144022
Circumference
509390468.3387
Area
2.0648654826225E+16
Volume
2.2320372949426E+24
Surface area
8.2594619304901E+16
Circumference
509390468.3387
Perimeter
324288044
Area
6572670967584121
Diagonal
114653137.48506
Surface area
39436025805504726
Volume
5.3285965298336E+23
Space diagonal
140420842.12378
Perimeter
243216033
Area
2.8460500143221E+15
Altitude
70210421.061891
Surface area
2.8460500143221E+15
Volume
6.2798112340874E+22
Height
38217712.49502