87081905 (number)

87081905 is an odd 8-digits composite number following 87081904 and preceding 87081906. In scientific notation, it is written as 8.7081905 × 10^7. The sum of its digits is 38. It has a total of 4 prime factors and 16 positive divisors. There are 63793152 positive integers (up to 87081905) that are relatively prime to 87081905.

Interesting facts

Basic properties

Name

Name eighty-seven million eighty-one thousand nine hundred five

Notation

Scientific notation 8.7081905 × 10^7
Engineering notation 8.7081905 × 10^6

Prime Factorization of 87081905

Prime Factorization 5 × 17 × 37 × 27689

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 87081905
Product of the distinct prime numbers

The prime factorization of 87081905 is 5 × 17 × 37 × 27689. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 9, 18, 50, 776, 617, 6157, 4888, 75115, 49661, 208824, 547790, 1382232, 2248165, 66548600, 92082157, 9683163, 880912506, 6969188578, 9397689409

Basic calculations (n = 87081905)

Multiplication

n×y
n×2 174163810
n×3 261245715
n×4 348327620
n×5 435409525

Division

n÷y
n÷2 43540952.5
n÷3 29027301.666667
n÷3 21770476.25
n÷5 17416381

Exponentiation

ny
n2 7583258178429025
n3 6.6036456828443E+23
n4 5.7505804600711E+31
n5 5.0077150131877E+39

Nth Root

y√n
2√n 9331.7685890725
3√n 443.24377026311
4√n 96.601079647551
5√n 38.724479067153

Divisors of 87081905

1, 5, 17, 37, 85, 185, 629, 3145, 27689, 138445, 470713, 1024493, 2353565, 5122465, 17416381, 87081905

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 -87081904
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 87081905 can be divided by 16 positive divisors. The sum of these divisors (counting 87081905) is 1, the average is 0.0625.

Base conversion 87081905

Base System Value
2 Binary 101001100001100001110110001
3 Ternary 20001212012220202
4 Quaternary 11030030032301
5 Quinary 134243110110
6 Senary 12350244545
8 Octal 514141661
10 Decimal 87081905
12 Duodecimal 251b6755
16 Hexadecimal 530c3b1
20 Vigesimal 17454f5
36 Base36 1fugtt

Cryptographic Hash Functions

md5 2a2fbf9f3712a3d512c4424c6bc6a3f7
sha1 410f4efb6240aef567ec164b265805990cbd0279
sha256 53446a4b782874cb506c7974145819d28f7e119dabd5f296fb3eaba44510284f
sha512 14973340e99bea48d125867e0b32c568cdb13599c913fb6c08a6baee4b82a25081b77514e89ae5346f1eea8cb7de12b4f1b82d1b95471034ad33ec4f063fd2fc
ripemd-160 75a641cbe84a7a79fd97fcb9f901fb051593a987

87081905 as geometric shapes

Circle

Radius = n
Diameter 174163810
Circumference 547151746.01721
Area 2.3823508183627E+16

Sphere

Radius = n
Volume 2.7661286352178E+24
Surface area 9.5294032734509E+16
Circumference 547151746.01721

Square

Length = n
Perimeter 348327620
Area 7583258178429025
Diagonal 123152411.08829

Cube

Length = n
Surface area 45499549070574150
Volume 6.6036456828443E+23
Space diagonal 150830283.87989

Equilateral Triangle

Length = n
Perimeter 261245715
Area 3.2836471129878E+15
Altitude 75415141.939943

Triangular Pyramid

Length = n
Surface area 3.2836471129878E+15
Volume 7.7824710714874E+22
Height 41050803.696095