81995514 is an even 8-digits composite number following 81995513
and preceding 81995515 . In scientific notation, it is written as 8.1995514 × 10^7.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 27331836 positive integers (up to 81995514) that are relatively prime to 81995514.
81995514 has 8 divisors, whose sum is 163991040
The reverse of 81995514 is 41559918
Previous prime number is 3
Is Prime? no
Number parity even
Number length 8
Sum of Digits 42
Digital Root 6
Name
eighty-one million nine hundred ninety-five thousand five hundred fourteen
Scientific notation
8.1995514 × 10^7
Engineering notation
8.1995514 × 10^6
Prime Factorization
2 × 3 × 13665919
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81995514
Product of the distinct prime numbers
The prime factorization of 81995514 is 2 × 3 × 13665919.
Since it has a total of 3 prime factors.
5 , 3 , 37 , 20 , 656 , 416 , 7638 , 1213 , 60497 , 4769 , 604014 , 536303 , 5227936 , 2997110 , 5187951 , 91537675 , 573408507 , 734080805 , 5588660384 , 9049565571
n×2
163991028
n×3
245986542
n×4
327982056
n×5
409977570
n÷2
40997757
n÷3
27331838
n÷3
20498878.5
n÷5
16399102.8
n2
6723264316124196
n3
5.5127751335846E+23
n4
4.5202283064469E+31
n5
3.7063844338446E+39
2 √n
9055.1374368366
3 √n
434.44022593485
4 √n
95.158485889786
5 √n
38.261149931945
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
-81995513
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 81995514 can be divided by 8 positive divisors.
The sum of these divisors (counting 81995514) is 1, the average is 0.125.
Base
System
Value
2
Binary
100111000110010011011111010
3
Ternary
12201021210200220
4
Quaternary
10320302123322
5
Quinary
131442324024
6
Senary
12045240510
8
Octal
470623372
10
Decimal
81995514
12
Duodecimal
23563136
16
Hexadecimal
4e326fa
20
Vigesimal
15c98fe
36
Base36
1ctg56
md5
1a24182b46a1cdbad110895e67b05aba
sha1
1604539cdc694ccb6337b37787fad5bca7cb0fb7
sha256
0aee25d6b6cd5b75f2b8d3c26d4505a354c132e79ac859696d4f4e87b9bd24b8
sha512
5fae01232cd8b0f84fb25ca5d8e73a60733c39cae4d1353af76cc56c4c75c38aef1e14e0c4a694142ec8c26accbbf9fa77810dce68a13476f15587a4041c41dc
ripemd-160
feb20cb5d5b7c82e33c068b7d6696d6ea25068b3
Diameter
163991028
Circumference
515193008.81944
Area
2.1121757783678E+16
Volume
2.3091858480749E+24
Surface area
8.4487031134713E+16
Circumference
515193008.81944
Perimeter
327982056
Area
6723264316124196
Diagonal
115959167.95255
Surface area
40339585896745176
Volume
5.5127751335846E+23
Space diagonal
142020396.24073
Perimeter
245986542
Area
2.9112588470605E+15
Altitude
71010198.120363
Surface area
2.9112588470605E+15
Volume
6.4968678001904E+22
Height
38653055.984184