81995514 (number)

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.

Interesting facts

Basic properties

Name

Name eighty-one million nine hundred ninety-five thousand five hundred fourteen

Notation

Scientific notation 8.1995514 × 10^7
Engineering notation 8.1995514 × 10^6

Prime Factorization of 81995514

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.

Most popular turbo-numbers

Basic calculations (n = 81995514)

Multiplication

n×y
n×2 163991028
n×3 245986542
n×4 327982056
n×5 409977570

Division

n÷y
n÷2 40997757
n÷3 27331838
n÷3 20498878.5
n÷5 16399102.8

Exponentiation

ny
n2 6723264316124196
n3 5.5127751335846E+23
n4 4.5202283064469E+31
n5 3.7063844338446E+39

Nth Root

y√n
2√n 9055.1374368366
3√n 434.44022593485
4√n 95.158485889786
5√n 38.261149931945

Divisors of 81995514

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 conversion 81995514

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

Cryptographic Hash Functions

md5 1a24182b46a1cdbad110895e67b05aba
sha1 1604539cdc694ccb6337b37787fad5bca7cb0fb7
sha256 0aee25d6b6cd5b75f2b8d3c26d4505a354c132e79ac859696d4f4e87b9bd24b8
sha512 5fae01232cd8b0f84fb25ca5d8e73a60733c39cae4d1353af76cc56c4c75c38aef1e14e0c4a694142ec8c26accbbf9fa77810dce68a13476f15587a4041c41dc
ripemd-160 feb20cb5d5b7c82e33c068b7d6696d6ea25068b3

81995514 as geometric shapes

Circle

Radius = n
Diameter 163991028
Circumference 515193008.81944
Area 2.1121757783678E+16

Sphere

Radius = n
Volume 2.3091858480749E+24
Surface area 8.4487031134713E+16
Circumference 515193008.81944

Square

Length = n
Perimeter 327982056
Area 6723264316124196
Diagonal 115959167.95255

Cube

Length = n
Surface area 40339585896745176
Volume 5.5127751335846E+23
Space diagonal 142020396.24073

Equilateral Triangle

Length = n
Perimeter 245986542
Area 2.9112588470605E+15
Altitude 71010198.120363

Triangular Pyramid

Length = n
Surface area 2.9112588470605E+15
Volume 6.4968678001904E+22
Height 38653055.984184