28397791 (number)

28397791 is an odd 8-digits composite number following 28397790 and preceding 28397792. In scientific notation, it is written as 2.8397791 × 10^7. The sum of its digits is 46. It has a total of 2 prime factors and 4 positive divisors. There are 28316992 positive integers (up to 28397791) that are relatively prime to 28397791.

Interesting facts

Basic properties

Name

Name twenty-eight million three hundred ninety-seven thousand seven hundred ninety-one

Notation

Scientific notation 2.8397791 × 10^7
Engineering notation 2.8397791 × 10^6

Prime Factorization of 28397791

Prime Factorization 353 × 80447

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 28397791
Product of the distinct prime numbers

The prime factorization of 28397791 is 353 × 80447. Since it has a total of 2 prime factors.

Most popular turbo-numbers

5, 1, 68, 69, 340, 805, 8193, 5375, 72862, 94961, 108870, 741543, 9042461, 6595839, 16144345, 47942402, 516830308, 813486348, 5215469241, 1827591448

Basic calculations (n = 28397791)

Multiplication

n×y
n×2 56795582
n×3 85193373
n×4 113591164
n×5 141988955

Division

n÷y
n÷2 14198895.5
n÷3 9465930.3333333
n÷3 7099447.75
n÷5 5679558.2

Exponentiation

ny
n2 806434533679681
n3 2.2900959342618E+22
n4 6.5033665711116E+29
n5 1.8468124468282E+37

Nth Root

y√n
2√n 5328.9577780275
3√n 305.09014982736
4√n 72.999710807835
5√n 30.949733353052

Divisors of 28397791

1, 353, 80447, 28397791

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 -28397790
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 28397791 can be divided by 4 positive divisors. The sum of these divisors (counting 28397791) is 1, the average is 0.25.

Base conversion 28397791

Base System Value
2 Binary 1101100010101000011011111
3 Ternary 1222102202110001
4 Quaternary 1230111003133
5 Quinary 24232212131
6 Senary 2452355131
8 Octal 154250337
10 Decimal 28397791
12 Duodecimal 9615aa7
16 Hexadecimal 1b150df
20 Vigesimal 8h9e9b
36 Base36 gwnvj

Cryptographic Hash Functions

md5 4a56b3240832ef6c4e1681d50a639b1f
sha1 de69746b24fcbf640739c0a13e4fdac5ac260448
sha256 dd5cefcbb44438def3d0484e36428e5bfbf76d1c35db9654687118e65f27b03b
sha512 a84b742caf3102aeddea7988e52c9ae2f55a4ce1fbffa955102f52a2f29c953e2777d9570ea0e48114139e1980afa52978e66d9f4d9eb898324c805b342323d0
ripemd-160 695afac39ab36c308fe3b2f63e146cea14e58da2

28397791 as geometric shapes

Circle

Radius = n
Diameter 56795582
Circumference 178428583.16756
Area 2.5334888066092E+15

Sphere

Radius = n
Volume 9.592731417457E+22
Surface area 1.0133955226437E+16
Circumference 178428583.16756

Square

Length = n
Perimeter 113591164
Area 806434533679681
Diagonal 40160541.173637

Cube

Length = n
Surface area 4838607202078086
Volume 2.2900959342618E+22
Space diagonal 49186416.834722

Equilateral Triangle

Length = n
Perimeter 85193373
Area 3.4919639632783E+14
Altitude 24593208.417361

Triangular Pyramid

Length = n
Surface area 3.4919639632783E+14
Volume 2.6989039411404E+21
Height 13386847.057879