28291261 (number)

28291261 is an odd 8-digits composite number following 28291260 and preceding 28291262. In scientific notation, it is written as 2.8291261 × 10^7. The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors. There are 28280124 positive integers (up to 28291261) that are relatively prime to 28291261.

Interesting facts

Basic properties

Name

Name twenty-eight million two hundred ninety-one thousand two hundred sixty-one

Notation

Scientific notation 2.8291261 × 10^7
Engineering notation 2.8291261 × 10^6

Prime Factorization of 28291261

Prime Factorization 3919 × 7219

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 28291261
Product of the distinct prime numbers

The prime factorization of 28291261 is 3919 × 7219. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 28291261)

Multiplication

n×y
n×2 56582522
n×3 84873783
n×4 113165044
n×5 141456305

Division

n÷y
n÷2 14145630.5
n÷3 9430420.3333333
n÷3 7072815.25
n÷5 5658252.2

Exponentiation

ny
n2 800395448970121
n3 2.2644196550026E+22
n4 6.4063287473208E+29
n5 1.8124311864226E+37

Nth Root

y√n
2√n 5318.9529984763
3√n 304.7081719974
4√n 72.931152455424
5√n 30.926477786099

Divisors of 28291261

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28291260
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28291261 can be divided by 4 positive divisors. The sum of these divisors (counting 28291261) is 1, the average is 0.25.

Base conversion 28291261

Base System Value
2 Binary 1101011111011000010111101
3 Ternary 1222020100022111
4 Quaternary 1223323002331
5 Quinary 24220310021
6 Senary 2450214021
8 Octal 153730275
10 Decimal 28291261
12 Duodecimal 9584311
16 Hexadecimal 1afb0bd
20 Vigesimal 8gg831
36 Base36 gudod

Cryptographic Hash Functions

md5 d8247892731ee642c72206e423af1b1c
sha1 6deab75a330a28681f658310eb5763af234398c6
sha256 a0a20bfbe5bdab299e294a87b6f0575da22158705e3f430bebc5499a4d485c0b
sha512 5a6eb146848f7ac1bcd6b9e7a5d233f3db054fa1448141d4ffaf3f761f13c8759d163fd51430b5d5f7e08ccfa088e259f4a79089b15f97c689a0ad21f81d813c
ripemd-160 03e7f44003966c7dbeca2260ab3deb48192f9d92

28291261 as geometric shapes

Circle

Radius = n
Diameter 56582522
Circumference 177759235.43678
Area 2.5145164624512E+15

Sphere

Radius = n
Volume 9.4851788704006E+22
Surface area 1.0058065849805E+16
Circumference 177759235.43678

Square

Length = n
Perimeter 113165044
Area 800395448970121
Diagonal 40009885.002837

Cube

Length = n
Surface area 4802372693820726
Volume 2.2644196550026E+22
Space diagonal 49001901.462192

Equilateral Triangle

Length = n
Perimeter 84873783
Area 3.4658139594079E+14
Altitude 24500950.731096

Triangular Pyramid

Length = n
Surface area 3.4658139594079E+14
Volume 2.6686441558407E+21
Height 13336628.334279