28931749 (number)

28931749 is an odd 8-digits composite number following 28931748 and preceding 28931750. In scientific notation, it is written as 2.8931749 × 10^7. The sum of its digits is 43. It has a total of 4 prime factors and 16 positive divisors. There are 22464000 positive integers (up to 28931749) that are relatively prime to 28931749.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.8931749 × 10^7
Engineering notation 2.8931749 × 10^6

Prime Factorization of 28931749

Prime Factorization 11 × 7 × 401 × 937

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 28931749
Product of the distinct prime numbers

The prime factorization of 28931749 is 11 × 7 × 401 × 937. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 9, 28, 33, 600, 322, 2471, 567, 97393, 52333, 731358, 872730, 2976260, 8181172, 58503327, 68871118, 824237952, 297399774, 3739834332, 2861243603

Basic calculations (n = 28931749)

Multiplication

n×y
n×2 57863498
n×3 86795247
n×4 115726996
n×5 144658745

Division

n÷y
n÷2 14465874.5
n÷3 9643916.3333333
n÷3 7232937.25
n÷5 5786349.8

Exponentiation

ny
n2 837046100199001
n3 2.4217207672386E+22
n4 7.0064617385836E+29
n5 2.027091923988E+37

Nth Root

y√n
2√n 5378.8241280042
3√n 306.99047175173
4√n 73.340467192432
5√n 31.065256062521

Divisors of 28931749

1, 7, 11, 77, 401, 937, 2807, 4411, 6559, 10307, 30877, 72149, 375737, 2630159, 4133107, 28931749

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 -28931748
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 28931749 can be divided by 16 positive divisors. The sum of these divisors (counting 28931749) is 1, the average is 0.0625.

Base conversion 28931749

Base System Value
2 Binary 1101110010111011010100101
3 Ternary 2000102212220021
4 Quaternary 1232113122211
5 Quinary 24401303444
6 Senary 2512035141
8 Octal 156273245
10 Decimal 28931749
12 Duodecimal 9832ab1
16 Hexadecimal 1b976a5
20 Vigesimal 90g979
36 Base36 h83vp

Cryptographic Hash Functions

md5 1078617ab1e7de9c9be8ce13349e42e1
sha1 6ddfd484b52eadc141184a32cbf5ec9d88ab8ce2
sha256 7bd268c3cc3f63967c46c2040f60fc68cf153a0d142ab8dfcf2a36c8b2d9e66b
sha512 d8216cf61526d929f7d0d838e46adc3177916b69eee3c57702a58ade242acce62e6d0e3fc1aaa36fdb45b3e1cef10e70466f2ceb4ee264b69a4195800997cd19
ripemd-160 f3d82f8595a6d57a0d604b6f45ec958b1d89fdee

28931749 as geometric shapes

Circle

Radius = n
Diameter 57863498
Circumference 181783540.22781
Area 2.6296578791012E+15

Sphere

Radius = n
Volume 1.0144080228537E+23
Surface area 1.0518631516405E+16
Circumference 181783540.22781

Square

Length = n
Perimeter 115726996
Area 837046100199001
Diagonal 40915671.818974

Cube

Length = n
Surface area 5022276601194006
Volume 2.4217207672386E+22
Space diagonal 50111259.21983

Equilateral Triangle

Length = n
Perimeter 86795247
Area 3.6245159345551E+14
Altitude 25055629.609915

Triangular Pyramid

Length = n
Surface area 3.6245159345551E+14
Volume 2.8540252944245E+21
Height 13638557.272991