28691289 (number)

28691289 is an odd 8-digits composite number following 28691288 and preceding 28691290. In scientific notation, it is written as 2.8691289 × 10^7. The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors. There are 17100000 positive integers (up to 28691289) that are relatively prime to 28691289.

Interesting facts

Basic properties

Name

Name twenty-eight million six hundred ninety-one thousand two hundred eighty-nine

Notation

Scientific notation 2.8691289 × 10^7
Engineering notation 2.8691289 × 10^6

Prime Factorization of 28691289

Prime Factorization 9 × 11 × 61 × 4751

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 28691289
Product of the distinct prime numbers

The prime factorization of 28691289 is 9 × 11 × 61 × 4751. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 4, 80, 83, 483, 930, 7699, 7166, 17633, 14568, 961744, 289428, 6992891, 6826132, 11123479, 19008720, 231538878, 418953583, 2816941479, 4222079456

Basic calculations (n = 28691289)

Multiplication

n×y
n×2 57382578
n×3 86073867
n×4 114765156
n×5 143456445

Division

n÷y
n÷2 14345644.5
n÷3 9563763
n÷3 7172822.25
n÷5 5738257.8

Exponentiation

ny
n2 823190064481521
n3 2.3618384041968E+22
n4 6.7764188226109E+29
n5 1.9442419082457E+37

Nth Root

y√n
2√n 5356.4250204777
3√n 306.13760951557
4√n 73.187601548881
5√n 31.013445091839

Divisors of 28691289

1, 9, 11, 61, 99, 549, 671, 4751, 6039, 42759, 52261, 289811, 470349, 2608299, 3187921, 28691289

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28691288
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28691289 can be divided by 16 positive divisors. The sum of these divisors (counting 28691289) is 1, the average is 0.0625.

Base conversion 28691289

Base System Value
2 Binary 1101101011100101101011001
3 Ternary 1222222200001100
4 Quaternary 1231130231121
5 Quinary 24321110124
6 Senary 2502542013
8 Octal 155345531
10 Decimal 28691289
12 Duodecimal 9737909
16 Hexadecimal 1b5cb59
20 Vigesimal 8j6849
36 Base36 h2yc9

Cryptographic Hash Functions

md5 9bdde61fa68fce60afdfa4fe91a54817
sha1 7152e020aca4325ba7c7dfbe7da87144ecac4aba
sha256 b3f9e6e3bb781ea98b7474145e38295cf1f68bac316aaf0e45bf349582812149
sha512 0f524ad56ca1a30b9862d364956d8cef38f149d26c11678fcee3053f26101cf574219024a1568e07bd6e77bc391c7eff89cb99bfce4748ba5a8a794c6b95dcc4
ripemd-160 4d29afc21e37f7e67bcc2376b791491ee0dcc216

28691289 as geometric shapes

Circle

Radius = n
Diameter 57382578
Circumference 180272685.48884
Area 2.5861278590833E+15

Sphere

Radius = n
Volume 9.8932455727879E+22
Surface area 1.0344511436333E+16
Circumference 180272685.48884

Square

Length = n
Perimeter 114765156
Area 823190064481521
Diagonal 40575610.025766

Cube

Length = n
Surface area 4939140386889126
Volume 2.3618384041968E+22
Space diagonal 49694770.282642

Equilateral Triangle

Length = n
Perimeter 86073867
Area 3.5645175399197E+14
Altitude 24847385.141321

Triangular Pyramid

Length = n
Surface area 3.5645175399197E+14
Volume 2.7834532527906E+21
Height 13525203.341922