81420106 is an even 8-digits composite number following 81420105
and preceding 81420107 . In scientific notation, it is written as 8.1420106 × 10^7.
The sum of its digits is 22. It has a total of 4 prime factors and 16 positive divisors.
There are 38059200 positive integers (up to 81420106) that are relatively prime to 81420106.
81420106 has 16 divisors, whose sum is 130178880
The reverse of 81420106 is 60102418
Previous prime number is 151
Is Prime? no
Number parity even
Number length 8
Sum of Digits 22
Digital Root 4
Name
eighty-one million four hundred twenty thousand one hundred six
Scientific notation
8.1420106 × 10^7
Engineering notation
8.1420106 × 10^6
Prime Factorization
2 × 17 × 151 × 15859
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81420106
Product of the distinct prime numbers
The prime factorization of 81420106 is 2 × 17 × 151 × 15859.
Since it has a total of 4 prime factors.
1 , 7 , 95 , 10 , 948 , 552 , 980 , 10000 , 57238 , 67845 , 214715 , 85892 , 447487 , 7381023 , 30900954 , 55344301 , 968165252 , 740625218 , 7483522673 , 9417876680
n×2
162840212
n×3
244260318
n×4
325680424
n×5
407100530
n÷2
40710053
n÷3
27140035.333333
n÷3
20355026.5
n÷5
16284021.2
n2
6629233661051236
n3
5.3975290738156E+23
n4
4.3946738932815E+31
n5
3.5781481422641E+39
2 √n
9023.3090382631
3 √n
433.4216034514
4 √n
94.99109978447
5 √n
38.207298615144
1 , 2 , 17 , 34 , 151 , 302 , 2567 , 5134 , 15859 , 31718 , 269603 , 539206 , 2394709 , 4789418 , 40710053 , 81420106
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81420105
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81420106 can be divided by 16 positive divisors.
The sum of these divisors (counting 81420106) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110110100101111101001010
3
Ternary
12200012120101111
4
Quaternary
10312211331022
5
Quinary
131320420411
6
Senary
12025040534
8
Octal
466457512
10
Decimal
81420106
12
Duodecimal
2332614a
16
Hexadecimal
4da5f4a
20
Vigesimal
158ha56
36
Base36
1ch45m
md5
03c829492c9289d193d91dc2968e59e7
sha1
5387743536b8e24774aa5773f16c0ba18412a734
sha256
1bedb55d18b8ece73a25f8e789a678ead02b22273b87ddda96970ed6115aa4ad
sha512
7a59dffab2f43a9526da8ed9fc58c27a76a88a56bbb7c05e29d3cd71bf92dac5077b35d302f8b8cdea0142f2d8d8d8bb44c53625b930f47a2b5bdecca3d147e2
ripemd-160
bafe898e87524de32fbdd44b52a6914d587890e0
Diameter
162840212
Circumference
511577613.7282
Area
2.0826351768489E+16
Volume
2.2609116914449E+24
Surface area
8.3305407073955E+16
Circumference
511577613.7282
Perimeter
325680424
Area
6629233661051236
Diagonal
115145418.15506
Surface area
39775401966307416
Volume
5.3975290738156E+23
Space diagonal
141023760.34964
Perimeter
244260318
Area
2.8705423790466E+15
Altitude
70511880.174822
Surface area
2.8705423790466E+15
Volume
6.3610490162443E+22
Height
38381806.051685