28687545 (number)

28687545 is an odd 8-digits composite number following 28687544 and preceding 28687546. In scientific notation, it is written as 2.8687545 × 10^7. The sum of its digits is 45. It has a total of 5 prime factors and 24 positive divisors. There are 15261696 positive integers (up to 28687545) that are relatively prime to 28687545.

Interesting facts

Basic properties

Name

Name twenty-eight million six hundred eighty-seven thousand five hundred forty-five

Notation

Scientific notation 2.8687545 × 10^7
Engineering notation 2.8687545 × 10^6

Prime Factorization of 28687545

Prime Factorization 5 × 3 × 3 × 769 × 829

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 9562515
Product of the distinct prime numbers

The prime factorization of 28687545 is 5 × 3 × 3 × 769 × 829. Since it has a total of 5 prime factors.

Most popular turbo-numbers

6, 8, 15, 9, 742, 570, 9496, 2758, 32758, 61842, 533312, 803349, 7893576, 2177527, 10404894, 74803078, 869240277, 332717353, 1006549545, 5303054548

Basic calculations (n = 28687545)

Multiplication

n×y
n×2 57375090
n×3 86062635
n×4 114750180
n×5 143437725

Division

n÷y
n÷2 14343772.5
n÷3 9562515
n÷3 7171886.25
n÷5 5737509

Exponentiation

ny
n2 822975238127025
n3 2.3609139177655E+22
n4 6.7728824257023E+29
n5 1.9429736936704E+37

Nth Root

y√n
2√n 5356.0755222457
3√n 306.12429270862
4√n 73.185213822505
5√n 31.012635644764

Divisors of 28687545

1, 3, 5, 9, 15, 45, 769, 829, 2307, 2487, 3845, 4145, 6921, 7461, 11535, 12435, 34605, 37305, 637501, 1912503, 3187505, 5737509, 9562515, 28687545

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28687544
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28687545 can be divided by 24 positive divisors. The sum of these divisors (counting 28687545) is 1, the average is 0.041666666666667.

Base conversion 28687545

Base System Value
2 Binary 1101101011011110010111001
3 Ternary 1222222110220200
4 Quaternary 1231123302321
5 Quinary 24321000140
6 Senary 2502512413
8 Octal 155336271
10 Decimal 28687545
12 Duodecimal 9735709
16 Hexadecimal 1b5bcb9
20 Vigesimal 8j5ih5
36 Base36 h2vg9

Cryptographic Hash Functions

md5 270a1c18cada5daf05aa02b6d2b82786
sha1 943f0be9e4b5ee1ae8033701fbc5970fd1f027a9
sha256 38350ef77022868fe511f82679f63759c73500cf1bb5b3e3c7c7b759ffaf4a80
sha512 a86f50ee54aafc2bea7ce363af35cb685ca0e8b09f43b7b5d88ed82353f2262d9b3a067e6c22fa4a4005c5c6ce06fc07de6b3368860bc7e5c212447ba69101e8
ripemd-160 7d12b1d0ed47f5af2b97a093a93e2d98e22984b5

28687545 as geometric shapes

Circle

Radius = n
Diameter 57375090
Circumference 180249161.24305
Area 2.5854529621862E+15

Sphere

Radius = n
Volume 9.8893730930799E+22
Surface area 1.0341811848745E+16
Circumference 180249161.24305

Square

Length = n
Perimeter 114750180
Area 822975238127025
Diagonal 40570315.210188

Cube

Length = n
Surface area 4937851428762150
Volume 2.3609139177655E+22
Space diagonal 49688285.484419

Equilateral Triangle

Length = n
Perimeter 86062635
Area 3.5635873145178E+14
Altitude 24844142.742209

Triangular Pyramid

Length = n
Surface area 3.5635873145178E+14
Volume 2.7823637350828E+21
Height 13523438.403396