28487 (number)

28487 is an odd 5-digits composite number following 28486 and preceding 28488. In scientific notation, it is written as 2.8487 × 10^4. The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors. There are 27960 positive integers (up to 28487) that are relatively prime to 28487.

Interesting facts

Basic properties

Name

Name twenty-eight thousand four hundred eighty-seven

Notation

Scientific notation 2.8487 × 10^4
Engineering notation 2.8487 × 10^3

Prime Factorization of 28487

Prime Factorization 61 × 467

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 28487
Product of the distinct prime numbers

The prime factorization of 28487 is 61 × 467. Since it has a total of 2 prime factors.

Most popular turbo-numbers

2, 5, 39, 99, 552, 50, 6715, 3122, 6295, 65079, 2305, 359141, 55871, 3129910, 66225864, 19844206, 195943606, 993644717, 6377738864, 7667201853

Basic calculations (n = 28487)

Multiplication

n×y
n×2 56974
n×3 85461
n×4 113948
n×5 142435

Division

n÷y
n÷2 14243.5
n÷3 9495.6666666667
n÷3 7121.75
n÷5 5697.4

Exponentiation

ny
n2 811509169
n3 23117461697303
n4 658547131371070561
n5 1.8760032131368E+22

Nth Root

y√n
2√n 168.78092309263
3√n 30.540928658871
4√n 12.991571232635
5√n 7.7790997985498

Divisors of 28487

1, 61, 467, 28487

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28486
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28487 can be divided by 4 positive divisors. The sum of these divisors (counting 28487) is 1, the average is 0.25.

Base conversion 28487

Base System Value
2 Binary 110111101000111
3 Ternary 1110002002
4 Quaternary 12331013
5 Quinary 1402422
6 Senary 335515
8 Octal 67507
10 Decimal 28487
12 Duodecimal 1459b
16 Hexadecimal 6f47
20 Vigesimal 3b47
36 Base36 lzb

Cryptographic Hash Functions

md5 639db9b23541380159f3d579500b11cb
sha1 bbf0512e8fda7018ab3a22e558845c415b1c777b
sha256 f339fa2ce9b70626f2a94662f9c09364b6b1f97b1e7fcf0ab18a62b9d928acd2
sha512 13f39b1cf0b57db4901ff0ab49764838c9db3c947573a7ad65b3add74282e72911a531783ab901084a3ce07d83b33da072ecc4e092af63983057126fb0eab19a
ripemd-160 eb213814ceecd93a26f76a3a690e3aa8a5cf9873

28487 as geometric shapes

Circle

Radius = n
Diameter 56974
Circumference 178989.09984562
Area 2549431243.6512

Sphere

Radius = n
Volume 96834197117187
Surface area 10197724974.605
Circumference 178989.09984562

Square

Length = n
Perimeter 113948
Area 811509169
Diagonal 40286.701751322

Cube

Length = n
Surface area 4869055014
Volume 23117461697303
Space diagonal 49340.931355215

Equilateral Triangle

Length = n
Perimeter 85461
Area 351393777.879
Altitude 24670.465677607

Triangular Pyramid

Length = n
Surface area 351393777.879
Volume 2724418988330.5
Height 13428.900583774