81095890 (number)

81095890 is an even 8-digits composite number following 81095889 and preceding 81095891. In scientific notation, it is written as 8.1095890 × 10^7. The sum of its digits is 40. It has a total of 4 prime factors and 16 positive divisors. There are 31319680 positive integers (up to 81095890) that are relatively prime to 81095890.

Interesting facts

Basic properties

Name

Name eighty-one million ninety-five thousand eight hundred ninety

Notation

Scientific notation 8.1095890 × 10^7
Engineering notation 8.1095890 × 10^6

Prime Factorization of 81095890

Prime Factorization 2 × 5 × 29 × 279641

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81095890
Product of the distinct prime numbers

The prime factorization of 81095890 is 2 × 5 × 29 × 279641. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 4, 50, 54, 235, 349, 8616, 5195, 30934, 56862, 590887, 255346, 1815352, 3404098, 53808320, 28691809, 918250548, 193960590, 4364594470, 735625923

Basic calculations (n = 81095890)

Multiplication

n×y
n×2 162191780
n×3 243287670
n×4 324383560
n×5 405479450

Division

n÷y
n÷2 40547945
n÷3 27031963.333333
n÷3 20273972.5
n÷5 16219178

Exponentiation

ny
n2 6576543374892100
n3 5.3333063811048E+23
n4 4.3250922761837E+31
n5 3.5074720746924E+39

Nth Root

y√n
2√n 9005.3256465272
3√n 432.84554118332
4√n 94.89639427569
5√n 38.176821633086

Divisors of 81095890

1, 2, 5, 10, 29, 58, 145, 290, 279641, 559282, 1398205, 2796410, 8109589, 16219178, 40547945, 81095890

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 -81095889
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 81095890 can be divided by 16 positive divisors. The sum of these divisors (counting 81095890) is 1, the average is 0.0625.

Base conversion 81095890

Base System Value
2 Binary 100110101010110110011010010
3 Ternary 12122121002122111
4 Quaternary 10311112303102
5 Quinary 131230032030
6 Senary 12014055534
8 Octal 465266322
10 Decimal 81095890
12 Duodecimal 231aa5aa
16 Hexadecimal 4d56cd2
20 Vigesimal 156gjea
36 Base36 1ca5zm

Cryptographic Hash Functions

md5 dc1329f9eea1443ba082d1b67f72701c
sha1 b0038f844098bb3d7c1789a4d2629174e17339d3
sha256 a8cb9640473485c115509b03c78e13acb425cfcfbcb3782cea87ad34744532bc
sha512 4868193c6216bf335b97601f32a99e9d550df041490b571a0349f26adb3886fc7a882b6d7b120a636ea53a2a7a75e160b4989644f722ef251a917252a020eed6
ripemd-160 7f3d5b3ea68c693474508d8b14375111715ef29b

81095890 as geometric shapes

Circle

Radius = n
Diameter 162191780
Circumference 509540504.52065
Area 2.0660820352576E+16

Sphere

Radius = n
Volume 2.2340101528296E+24
Surface area 8.2643281410303E+16
Circumference 509540504.52065

Square

Length = n
Perimeter 324383560
Area 6576543374892100
Diagonal 114686907.49072

Cube

Length = n
Surface area 39459260249352600
Volume 5.3333063811048E+23
Space diagonal 140462201.76502

Equilateral Triangle

Length = n
Perimeter 243287670
Area 2.8477268158734E+15
Altitude 70231100.882508

Triangular Pyramid

Length = n
Surface area 2.8477268158734E+15
Volume 6.2853618470411E+22
Height 38228969.163572