81220004 is an even 8-digits composite number following 81220003
and preceding 81220005 . In scientific notation, it is written as 8.1220004 × 10^7.
The sum of its digits is 17. It has a total of 4 prime factors and 12 positive divisors.
There are 40500384 positive integers (up to 81220004) that are relatively prime to 81220004.
81220004 has 12 divisors, whose sum is 142518684
The reverse of 81220004 is 40002218
Previous prime number is 373
Is Prime? no
Number parity even
Number length 8
Sum of Digits 17
Digital Root 8
Name
eighty-one million two hundred twenty thousand four
Scientific notation
8.1220004 × 10^7
Engineering notation
8.1220004 × 10^6
Prime Factorization
2 × 2 × 373 × 54437
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
40610002
Product of the distinct prime numbers
The prime factorization of 81220004 is 2 × 2 × 373 × 54437.
Since it has a total of 4 prime factors.
2 , 5 , 49 , 5 , 596 , 218 , 6327 , 8199 , 85170 , 65203 , 997983 , 351005 , 9181987 , 7834419 , 81007790 , 16333317 , 910886224 , 734952403 , 1039017753 , 9517949194
n×2
162440008
n×3
243660012
n×4
324880016
n×5
406100020
n÷2
40610002
n÷3
27073334.666667
n÷3
20305001
n÷5
16244000.8
n2
6596689049760016
n3
5.3578311100826E+23
n4
4.3516306419224E+31
n5
3.5343945814346E+39
2 √n
9012.2141563547
3 √n
433.06624619573
4 √n
94.932682235122
5 √n
38.1885001041
1 , 2 , 4 , 373 , 746 , 1492 , 54437 , 108874 , 217748 , 20305001 , 40610002 , 81220004
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81220003
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81220004 can be divided by 12 positive divisors.
The sum of these divisors (counting 81220004) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
100110101110101000110100100
3
Ternary
12122211101220022
4
Quaternary
10311311012210
5
Quinary
131243020004
6
Senary
12020454312
8
Octal
465650644
10
Decimal
81220004
12
Duodecimal
2324a398
16
Hexadecimal
4d751a4
20
Vigesimal
157ca04
36
Base36
1cctr8
md5
8be0915c1ca39190e9a8bcd3c12e7d35
sha1
f1378eca793fc91a240be6e0337c5000670a2283
sha256
c9f15f5fd883f3ef9f496bab55543dfbe980413eed4ca15ea586d9956a05f328
sha512
5e9cccb376d03a15f8d8b48be44352841d8cfb4dc67d10ca622c2dfc639bf410b607fd4468271e5d233afa49089467a52770a045f181334161ad097c5ddec7c3
ripemd-160
491623f90797ff356f8c94fda0c2f024d0a97682
Diameter
162440008
Circumference
510320335.78187
Area
2.0724109856742E+16
Volume
2.2442830472814E+24
Surface area
8.2896439426969E+16
Circumference
510320335.78187
Perimeter
324880016
Area
6596689049760016
Diagonal
114862431.1928
Surface area
39580134298560096
Volume
5.3578311100826E+23
Space diagonal
140677173.51895
Perimeter
243660012
Area
2.8564501489794E+15
Altitude
70338586.759474
Surface area
2.8564501489794E+15
Volume
6.3142645173195E+22
Height
38287477.064266