28515 (number)

28515 is an odd 5-digits composite number following 28514 and preceding 28516. In scientific notation, it is written as 2.8515 × 10^4. The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors. There are 15200 positive integers (up to 28515) that are relatively prime to 28515.

Interesting facts

Basic properties

Name

Name twenty-eight thousand five hundred fifteen

Notation

Scientific notation 2.8515 × 10^4
Engineering notation 2.8515 × 10^3

Prime Factorization of 28515

Prime Factorization 3 × 5 × 1901

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 28515
Product of the distinct prime numbers

The prime factorization of 28515 is 3 × 5 × 1901. Since it has a total of 3 prime factors.

Most popular turbo-numbers

4, 2, 13, 28, 150, 463, 7936, 4640, 28499, 57413, 121243, 271282, 4408387, 5545680, 12663457, 88207429, 171568945, 643394378, 1237645033, 2918744778

Basic calculations (n = 28515)

Multiplication

n×y
n×2 57030
n×3 85545
n×4 114060
n×5 142575

Division

n÷y
n÷2 14257.5
n÷3 9505
n÷3 7128.75
n÷5 5703

Exponentiation

ny
n2 813105225
n3 23185695490875
n4 661140106922300625
n5 1.8852410148889E+22

Nth Root

y√n
2√n 168.86385048316
3√n 30.550931654152
4√n 12.994762425037
5√n 7.7806284200851

Divisors of 28515

1, 3, 5, 15, 1901, 5703, 9505, 28515

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 -28514
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 28515 can be divided by 8 positive divisors. The sum of these divisors (counting 28515) is 1, the average is 0.125.

Base conversion 28515

Base System Value
2 Binary 110111101100011
3 Ternary 1110010010
4 Quaternary 12331203
5 Quinary 1403030
6 Senary 340003
8 Octal 67543
10 Decimal 28515
12 Duodecimal 14603
16 Hexadecimal 6f63
20 Vigesimal 3b5f
36 Base36 m03

Cryptographic Hash Functions

md5 8a8aee6f4d29fa77828d4f011a237ea5
sha1 bbc99cfe4fcc73de2292dcb1628bfbf98678ba0b
sha256 d78696f7771537d45e313181a4e0fa5b074af2502c0baf207573c7ff127f1bdf
sha512 dd337295391355430f14c662f797a269496aab1a4cb07d551e4c09fcbdaa81ca377bab6d0f22a56da716ffdfe8dd4f080dedec996a21ad8994e8414c91b6e951
ripemd-160 9ed0d63cbae8f41a40b51fed650034ff51d17793

28515 as geometric shapes

Circle

Radius = n
Diameter 57030
Circumference 179165.02903423
Area 2554445401.4555

Sphere

Radius = n
Volume 97120014163337
Surface area 10217781605.822
Circumference 179165.02903423

Square

Length = n
Perimeter 114060
Area 813105225
Diagonal 40326.299731069

Cube

Length = n
Surface area 4878631350
Volume 23185695490875
Space diagonal 49389.428777827

Equilateral Triangle

Length = n
Perimeter 85545
Area 352084890.39993
Altitude 24694.714388913

Triangular Pyramid

Length = n
Surface area 352084890.39993
Volume 2732460418020.7
Height 13442.099910356