28890745 (number)

28890745 is an odd 8-digits composite number following 28890744 and preceding 28890746. In scientific notation, it is written as 2.8890745 × 10^7. The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors. There are 21334656 positive integers (up to 28890745) that are relatively prime to 28890745.

Interesting facts

Basic properties

Name

Name twenty-eight million eight hundred ninety thousand seven hundred forty-five

Notation

Scientific notation 2.8890745 × 10^7
Engineering notation 2.8890745 × 10^6

Prime Factorization of 28890745

Prime Factorization 13 × 5 × 444473

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 28890745
Product of the distinct prime numbers

The prime factorization of 28890745 is 13 × 5 × 444473. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 28890745)

Multiplication

n×y
n×2 57781490
n×3 86672235
n×4 115562980
n×5 144453725

Division

n÷y
n÷2 14445372.5
n÷3 9630248.3333333
n÷3 7222686.25
n÷5 5778149

Exponentiation

ny
n2 834675146655025
n3 2.4114386819848E+22
n4 6.9668260044359E+29
n5 2.0127679355353E+37

Nth Root

y√n
2√n 5375.0111627791
3√n 306.84537407415
4√n 73.314467622558
5√n 31.05644551671

Divisors of 28890745

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 -28890744
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 28890745 can be divided by 8 positive divisors. The sum of these divisors (counting 28890745) is 1, the average is 0.125.

Base conversion 28890745

Base System Value
2 Binary 1101110001101011001111001
3 Ternary 2000100210122121
4 Quaternary 1232031121321
5 Quinary 24344000440
6 Senary 2511121241
8 Octal 156153171
10 Decimal 28890745
12 Duodecimal 9813221
16 Hexadecimal 1b8d679
20 Vigesimal 90b6h5
36 Base36 h788p

Cryptographic Hash Functions

md5 f163a9cce5471b9e20f0196f778e28a4
sha1 e3b8369c0671cef1c8abfddceeeeaf696fa352e2
sha256 9200faaea7602ea33161d2054e50a4d14032df79960e348136bd7648cc0542f9
sha512 ca03ab58efd49a1d7eccf21c2da1b438b99174a30a6b1f7cef1d398a80975d958c90a645ea3b4f1a098e40bf07d6f9a764ce755ce4b492aefaf627e4af649baa
ripemd-160 f8d81f2d9fa41e8eabc4917f295da4cc780e7ab4

28890745 as geometric shapes

Circle

Radius = n
Diameter 57781490
Circumference 181525904.49747
Area 2.6222093088654E+15

Sphere

Radius = n
Volume 1.0101010730541E+23
Surface area 1.0488837235462E+16
Circumference 181525904.49747

Square

Length = n
Perimeter 115562980
Area 834675146655025
Diagonal 40857683.406063

Cube

Length = n
Surface area 5008050879930150
Volume 2.4114386819848E+22
Space diagonal 50040238.208517

Equilateral Triangle

Length = n
Perimeter 86672235
Area 3.6142494045538E+14
Altitude 25020119.104258

Triangular Pyramid

Length = n
Surface area 3.6142494045538E+14
Volume 2.841907740745E+21
Height 13619227.802021