81220006 is an even 8-digits composite number following 81220005
and preceding 81220007 . In scientific notation, it is written as 8.1220006 × 10^7.
The sum of its digits is 19. It has a total of 3 prime factors and 8 positive divisors.
There are 34808568 positive integers (up to 81220006) that are relatively prime to 81220006.
81220006 has 8 divisors, whose sum is 139234320
The reverse of 81220006 is 60002218
Previous prime number is 7
Is Prime? no
Number parity even
Number length 8
Sum of Digits 19
Digital Root 1
Name
eighty-one million two hundred twenty thousand six
Scientific notation
8.1220006 × 10^7
Engineering notation
8.1220006 × 10^6
Prime Factorization
2 × 7 × 5801429
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81220006
Product of the distinct prime numbers
The prime factorization of 81220006 is 2 × 7 × 5801429.
Since it has a total of 3 prime factors.
7 , 1 , 75 , 62 , 23 , 614 , 3329 , 3071 , 82739 , 88593 , 756803 , 371866 , 7033352 , 2798936 , 33171132 , 52358733 , 940246795 , 605145126 , 3230726158 , 9019219165
n×2
162440012
n×3
243660018
n×4
324880024
n×5
406100030
n÷2
40610003
n÷3
27073335.333333
n÷3
20305001.5
n÷5
16244001.2
n2
6596689374640036
n3
5.357831505884E+23
n4
4.3516310705489E+31
n5
3.5343950165977E+39
2 √n
9012.2142673152
3 √n
433.0662497504
4 √n
94.932682819539
5 √n
38.188500292174
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81220005
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81220006 can be divided by 8 positive divisors.
The sum of these divisors (counting 81220006) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110101110101000110100110
3
Ternary
12122211101220101
4
Quaternary
10311311012212
5
Quinary
131243020011
6
Senary
12020454314
8
Octal
465650646
10
Decimal
81220006
12
Duodecimal
2324a39a
16
Hexadecimal
4d751a6
20
Vigesimal
157ca06
36
Base36
1cctra
md5
cc41698a3d77dcb2dbfdec5e7b25a059
sha1
52b7bf0c2aa5f298f1275eee7629c49465e45e7d
sha256
86faa62d0b023cd7f48a95efc402ad3fdd1c4904693581c1939687121a71ecf4
sha512
d45865d51fc47e3aa0224c677f88d15d45da51abb827f821d82052621fbfe0743ac96c61c2b043c6dee83016b8e3af305b29bfd25e16b3a86064b6f9416ecf3f
ripemd-160
ce2713aa214289faf34ee37fbe22ac4e3ec6d481
Diameter
162440012
Circumference
510320348.34824
Area
2.0724110877383E+16
Volume
2.2442832130743E+24
Surface area
8.2896443509532E+16
Circumference
510320348.34824
Perimeter
324880024
Area
6596689374640036
Diagonal
114862434.02122
Surface area
39580136247840216
Volume
5.357831505884E+23
Space diagonal
140677176.98305
Perimeter
243660018
Area
2.8564502896566E+15
Altitude
70338588.491525
Surface area
2.8564502896566E+15
Volume
6.3142649837758E+22
Height
38287478.007075