81444802 is an even 8-digits composite number following 81444801
and preceding 81444803 . In scientific notation, it is written as 8.1444802 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 40722400 positive integers (up to 81444802) that are relatively prime to 81444802.
81444802 has 4 divisors, whose sum is 122167206
The reverse of 81444802 is 20844418
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
eighty-one million four hundred forty-four thousand eight hundred two
Scientific notation
8.1444802 × 10^7
Engineering notation
8.1444802 × 10^6
Prime Factorization
2 × 40722401
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81444802
Product of the distinct prime numbers
The prime factorization of 81444802 is 2 × 40722401.
Since it has a total of 2 prime factors.
5 , 10 , 20 , 32 , 134 , 49 , 3467 , 9200 , 4582 , 18888 , 631112 , 7798 , 3480288 , 8678791 , 55534408 , 40630089 , 247571909 , 37905188 , 478683632 , 6670233920
n×2
162889604
n×3
244334406
n×4
325779208
n×5
407224010
n÷2
40722401
n÷3
27148267.333333
n÷3
20361200.5
n÷5
16288960.4
n2
6633255772819204
n3
5.4024420303262E+23
n4
4.4000082147639E+31
n5
3.5835779784982E+39
2 √n
9024.6773903558
3 √n
433.46542022025
4 √n
94.99830203933
5 √n
38.209616109026
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81444801
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81444802 can be divided by 4 positive divisors.
The sum of these divisors (counting 81444802) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110110101011111111000010
3
Ternary
12200020211021011
4
Quaternary
10312223333002
5
Quinary
131322213202
6
Senary
12025351134
8
Octal
466537702
10
Decimal
81444802
12
Duodecimal
233384aa
16
Hexadecimal
4dabfc2
20
Vigesimal
1590c02
36
Base36
1chn7m
md5
2a2c69f005d7068ca05af67e5b55d142
sha1
84f56daf2076d7264d26c53e795dc68d7a9e27ea
sha256
6879bb2a1a0496052c649a985d10b6552dad2b3fd4b5562d5e867b049e39002e
sha512
f0ef2b0ecd07b3056a7ed379ed1fc188d3dada251d7dc649e1557a880332fab1ff46f0bd55a8913b62399287228f1ccd33dfbbc4218cd987e2aab64b647e334b
ripemd-160
2bd1641a58159eda208e7ac5a3d4b1f1fad33024
Diameter
162889604
Circumference
511732783.27255
Area
2.0838987605271E+16
Volume
2.2629696258557E+24
Surface area
8.3355950421084E+16
Circumference
511732783.27255
Perimeter
325779208
Area
6633255772819204
Diagonal
115180343.57319
Surface area
39799534636915224
Volume
5.4024420303262E+23
Space diagonal
141066535.07639
Perimeter
244334406
Area
2.8722840045306E+15
Altitude
70533267.538194
Surface area
2.8722840045306E+15
Volume
6.3668389910181E+22
Height
38393447.85773