28761489 (number)

28761489 is an odd 8-digits composite number following 28761488 and preceding 28761490. In scientific notation, it is written as 2.8761489 × 10^7. The sum of its digits is 45. It has a total of 3 prime factors and 8 positive divisors. There are 18911232 positive integers (up to 28761489) that are relatively prime to 28761489.

Interesting facts

Basic properties

Name

Name twenty-eight million seven hundred sixty-one thousand four hundred eighty-nine

Notation

Scientific notation 2.8761489 × 10^7
Engineering notation 2.8761489 × 10^6

Prime Factorization of 28761489

Prime Factorization 9 × 73 × 43777

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 28761489
Product of the distinct prime numbers

The prime factorization of 28761489 is 9 × 73 × 43777. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 10, 88, 91, 973, 336, 215, 6751, 21126, 50174, 547082, 187323, 4108207, 3218043, 66650876, 41771789, 66389039, 11402698, 1614102131, 5261483619

Basic calculations (n = 28761489)

Multiplication

n×y
n×2 57522978
n×3 86284467
n×4 115045956
n×5 143807445

Division

n÷y
n÷2 14380744.5
n÷3 9587163
n÷3 7190372.25
n÷5 5752297.8

Exponentiation

ny
n2 827223249497121
n3 2.3792172390956E+22
n4 6.8429830450858E+29
n5 1.9681438157842E+37

Nth Root

y√n
2√n 5362.9738951444
3√n 306.3870854278
4√n 73.232328210595
5√n 31.028606601034

Divisors of 28761489

1, 9, 73, 657, 43777, 393993, 3195721, 28761489

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 -28761488
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 28761489 can be divided by 8 positive divisors. The sum of these divisors (counting 28761489) is 1, the average is 0.125.

Base conversion 28761489

Base System Value
2 Binary 1101101101101110110010001
3 Ternary 2000010020100100
4 Quaternary 1231231312101
5 Quinary 24330331424
6 Senary 2504243013
8 Octal 155556621
10 Decimal 28761489
12 Duodecimal 9770469
16 Hexadecimal 1b6dd91
20 Vigesimal 8jf3e9
36 Base36 h4gi9

Cryptographic Hash Functions

md5 bc0c5ca495e80e4cea5614cb19e8b515
sha1 8da668b9e85aef7473b9bb9e678df2af6826ddc4
sha256 0c9be7455c51b0f07100e5461517d4f57d1f860075188abcd7462da65efa77fa
sha512 a42a2b6dd31144d871bad6a8d0cb97064a45ad5c38d4d2a95c99886e598924ac9a48559f24418cf3d97e59aeaf0d575922523cea1c89d01ae6b59caab8cb542c
ripemd-160 32adc52547d7f6aa63a68b39876606f578ab5745

28761489 as geometric shapes

Circle

Radius = n
Diameter 57522978
Circumference 180713765.09741
Area 2.5987984834988E+15

Sphere

Radius = n
Volume 9.9660418661824E+22
Surface area 1.0395193933995E+16
Circumference 180713765.09741

Square

Length = n
Perimeter 115045956
Area 827223249497121
Diagonal 40674887.817845

Cube

Length = n
Surface area 4963339496982726
Volume 2.3792172390956E+22
Space diagonal 49816360.249333

Equilateral Triangle

Length = n
Perimeter 86284467
Area 3.5819817433281E+14
Altitude 24908180.124667

Triangular Pyramid

Length = n
Surface area 3.5819817433281E+14
Volume 2.803934406134E+21
Height 13558295.939282