81420006 is an even 8-digits composite number following 81420005
and preceding 81420007 . In scientific notation, it is written as 8.1420006 × 10^7.
The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors.
There are 27140000 positive integers (up to 81420006) that are relatively prime to 81420006.
81420006 has 8 divisors, whose sum is 162840024
The reverse of 81420006 is 60002418
Previous prime number is 3
Is Prime? no
Number parity even
Number length 8
Sum of Digits 21
Digital Root 3
Name
eighty-one million four hundred twenty thousand six
Scientific notation
8.1420006 × 10^7
Engineering notation
8.1420006 × 10^6
Prime Factorization
2 × 3 × 13570001
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81420006
Product of the distinct prime numbers
The prime factorization of 81420006 is 2 × 3 × 13570001.
Since it has a total of 3 prime factors.
7 , 9 , 17 , 93 , 220 , 889 , 4169 , 893 , 29715 , 80516 , 101401 , 212222 , 8626014 , 3116429 , 27429407 , 36622474 , 830401246 , 936040035 , 5633880968 , 6889034698
n×2
162840012
n×3
244260018
n×4
325680024
n×5
407100030
n÷2
40710003
n÷3
27140002
n÷3
20355001.5
n÷5
16284001.2
n2
6629217377040036
n3
5.397509186139E+23
n4
4.394652303205E+31
n5
3.5781261689486E+39
2 √n
9023.3034970569
3 √n
433.42142600883
4 √n
94.99107061749
5 √n
38.207289229915
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
-81420005
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 81420006 can be divided by 8 positive divisors.
The sum of these divisors (counting 81420006) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110100101111011100110
3
Ternary
12200012120020210
4
Quaternary
10312211323212
5
Quinary
131320420011
6
Senary
12025040250
8
Octal
466457346
10
Decimal
81420006
12
Duodecimal
23326086
16
Hexadecimal
4da5ee6
20
Vigesimal
158ha06
36
Base36
1ch42u
md5
b79ca6c79ff44236a4eea70093fb8f66
sha1
0e00f3640561e78ad17fd05d68a62a7f0a66b6d5
sha256
7506d20b6ca076dfa24e66b7ad0332c3e4d1fac36d273fe849266ec81c897584
sha512
c69ac8c88e2d90a14e6c7b4d8fb2b95bb4d3c7c6509aa3e55eb782a5011db33fdbc6b99163b8a1c365ed6018aec419484ac2a2a96194ef5e742bbf503bd0a3c6
ripemd-160
273a625c8d6964d80762603d44aeb4e287a95712
Diameter
162840012
Circumference
511576985.40967
Area
2.0826300610759E+16
Volume
2.2609033609144E+24
Surface area
8.3305202443035E+16
Circumference
511576985.40967
Perimeter
325680024
Area
6629217377040036
Diagonal
115145276.7337
Surface area
39775304262240216
Volume
5.397509186139E+23
Space diagonal
141023587.14456
Perimeter
244260018
Area
2.870535327863E+15
Altitude
70511793.572281
Surface area
2.870535327863E+15
Volume
6.3610255783927E+22
Height
38381758.911233