28931690 (number)

28931690 is an even 8-digits composite number following 28931689 and preceding 28931691. In scientific notation, it is written as 2.8931690 × 10^7. The sum of its digits is 38. It has a total of 5 prime factors and 32 positive divisors. There are 11108160 positive integers (up to 28931690) that are relatively prime to 28931690.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.8931690 × 10^7
Engineering notation 2.8931690 × 10^6

Prime Factorization of 28931690

Prime Factorization 2 × 61 × 5 × 43 × 1103

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 28931690
Product of the distinct prime numbers

The prime factorization of 28931690 is 2 × 61 × 5 × 43 × 1103. Since it has a total of 5 prime factors.

Most popular turbo-numbers

7, 5, 71, 6, 959, 543, 6247, 5153, 71087, 46195, 288184, 280371, 5701641, 8835543, 13163481, 11176613, 656064985, 752990127, 5697717680, 9036630295

Basic calculations (n = 28931690)

Multiplication

n×y
n×2 57863380
n×3 86795070
n×4 115726760
n×5 144658450

Division

n÷y
n÷2 14465845
n÷3 9643896.6666667
n÷3 7232922.5
n÷5 5786338

Exponentiation

ny
n2 837042686256100
n3 2.4217059515529E+22
n4 7.0064045861483E+29
n5 2.0270712550102E+37

Nth Root

y√n
2√n 5378.8186435313
3√n 306.99026307152
4√n 73.340429801927
5√n 31.065243392346

Divisors of 28931690

1, 2, 5, 10, 43, 61, 86, 122, 215, 305, 430, 610, 1103, 2206, 2623, 5246, 5515, 11030, 13115, 26230, 47429, 67283, 94858, 134566, 237145, 336415, 474290, 672830, 2893169, 5786338, 14465845, 28931690

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28931689
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28931690 can be divided by 32 positive divisors. The sum of these divisors (counting 28931690) is 1, the average is 0.03125.

Base conversion 28931690

Base System Value
2 Binary 1101110010111011001101010
3 Ternary 2000102212211002
4 Quaternary 1232113121222
5 Quinary 24401303230
6 Senary 2512035002
8 Octal 156273152
10 Decimal 28931690
12 Duodecimal 9832a62
16 Hexadecimal 1b9766a
20 Vigesimal 90g94a
36 Base36 h83u2

Cryptographic Hash Functions

md5 5596911972fb668af034305d4c6c2d2e
sha1 aba18d6e46ef1c8cce98acd98c4d76a8a179a1d7
sha256 2388d1b9b37769f015cbee002364f6d663b5778e297afb6c74947077db585678
sha512 af42817b2251a348ac04fc9fcf8eb5c6776a3842de606b3cf6e6dd5c8833fe0dd122de3826285ba2a6418892b5784b50ac69dd6c11eb131080f6038fc4de54c6
ripemd-160 8239ac86bb3665114f81cd57bea6c1b29b48cf71

28931690 as geometric shapes

Circle

Radius = n
Diameter 57863380
Circumference 181783169.51987
Area 2.6296471538832E+15

Sphere

Radius = n
Volume 1.0144018168738E+23
Surface area 1.0518588615533E+16
Circumference 181783169.51987

Square

Length = n
Perimeter 115726760
Area 837042686256100
Diagonal 40915588.380374

Cube

Length = n
Surface area 5022256117536600
Volume 2.4217059515529E+22
Space diagonal 50111157.028832

Equilateral Triangle

Length = n
Perimeter 86795070
Area 3.6245011517488E+14
Altitude 25055578.514416

Triangular Pyramid

Length = n
Surface area 3.6245011517488E+14
Volume 2.8540078339714E+21
Height 13638529.460125