28931009 (number)

28931009 is an odd 8-digits composite number following 28931008 and preceding 28931010. In scientific notation, it is written as 2.8931009 × 10^7. The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors. There are 27538000 positive integers (up to 28931009) that are relatively prime to 28931009.

Interesting facts

Basic properties

Name

Name twenty-eight million nine hundred thirty-one thousand nine

Notation

Scientific notation 2.8931009 × 10^7
Engineering notation 2.8931009 × 10^6

Prime Factorization of 28931009

Prime Factorization 29 × 71 × 14051

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 28931009
Product of the distinct prime numbers

The prime factorization of 28931009 is 29 × 71 × 14051. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 28931009)

Multiplication

n×y
n×2 57862018
n×3 86793027
n×4 115724036
n×5 144655045

Division

n÷y
n÷2 14465504.5
n÷3 9643669.6666667
n÷3 7232752.25
n÷5 5786201.8

Exponentiation

ny
n2 837003281758081
n3 2.4215349477573E+22
n4 7.005744936738E+29
n5 2.0268326981647E+37

Nth Root

y√n
2√n 5378.7553392955
3√n 306.98785438622
4√n 73.339998222631
5√n 31.065097146967

Divisors of 28931009

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 -28931008
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 28931009 can be divided by 8 positive divisors. The sum of these divisors (counting 28931009) is 1, the average is 0.125.

Base conversion 28931009

Base System Value
2 Binary 1101110010111001111000001
3 Ternary 2000102211212212
4 Quaternary 1232113033001
5 Quinary 24401243014
6 Senary 2512031505
8 Octal 156271701
10 Decimal 28931009
12 Duodecimal 9832595
16 Hexadecimal 1b973c1
20 Vigesimal 90g7a9
36 Base36 h83b5

Cryptographic Hash Functions

md5 d9022de355840eb5699bb2207ece1cf9
sha1 207ca32c79c48fcd74612c350307515ec0604784
sha256 863069e715349c20f51ea38889f2a44080ec15f1503fe6e001b1ceba4efcc82b
sha512 36f6abc750898e6b9008e13e6fe0003ad256a2cae776f72faebba2eb72f6a014c7d56f8e23f05ecf8eff749b4b009303f51b40fae0f14849fe016a82413bcd99
ripemd-160 a61cefe3b2e425de17165076decd0a60bcff9046

28931009 as geometric shapes

Circle

Radius = n
Diameter 57862018
Circumference 181778890.67068
Area 2.6295233610017E+15

Sphere

Radius = n
Volume 1.0143301869714E+23
Surface area 1.0518093444007E+16
Circumference 181778890.67068

Square

Length = n
Perimeter 115724036
Area 837003281758081
Diagonal 40914625.300938

Cube

Length = n
Surface area 5022019690548486
Volume 2.4215349477573E+22
Space diagonal 50109977.502232

Equilateral Triangle

Length = n
Perimeter 86793027
Area 3.6243305252672E+14
Altitude 25054988.751116

Triangular Pyramid

Length = n
Surface area 3.6243305252672E+14
Volume 2.8538063040656E+21
Height 13638208.433646