28405940 (number)

28405940 is an even 8-digits composite number following 28405939 and preceding 28405941. In scientific notation, it is written as 2.8405940 × 10^7. The sum of its digits is 32. It has a total of 5 prime factors and 24 positive divisors. There are 11260928 positive integers (up to 28405940) that are relatively prime to 28405940.

Interesting facts

Basic properties

Name

Name twenty-eight million four hundred five thousand nine hundred forty

Notation

Scientific notation 2.8405940 × 10^7
Engineering notation 2.8405940 × 10^6

Prime Factorization of 28405940

Prime Factorization 2 × 2 × 5 × 113 × 12569

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 14202970
Product of the distinct prime numbers

The prime factorization of 28405940 is 2 × 2 × 5 × 113 × 12569. Since it has a total of 5 prime factors.

Most popular turbo-numbers

3, 5, 45, 51, 390, 214, 19, 4075, 63776, 43727, 156384, 347254, 1551448, 4515305, 10196734, 59680316, 194452471, 920416045, 625504640, 3312917145

Basic calculations (n = 28405940)

Multiplication

n×y
n×2 56811880
n×3 85217820
n×4 113623760
n×5 142029700

Division

n÷y
n÷2 14202970
n÷3 9468646.6666667
n÷3 7101485
n÷5 5681188

Exponentiation

ny
n2 806897427283600
n3 2.2920679905572E+22
n4 6.5108345815689E+29
n5 1.8494637647397E+37

Nth Root

y√n
2√n 5329.7223192208
3√n 305.11932981837
4√n 73.004947224286
5√n 30.951509409736

Divisors of 28405940

1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 1130, 2260, 12569, 25138, 50276, 62845, 125690, 251380, 1420297, 2840594, 5681188, 7101485, 14202970, 28405940

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28405939
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28405940 can be divided by 24 positive divisors. The sum of these divisors (counting 28405940) is 1, the average is 0.041666666666667.

Base conversion 28405940

Base System Value
2 Binary 1101100010111000010110100
3 Ternary 1222110011121212
4 Quaternary 1230113002310
5 Quinary 24232442230
6 Senary 2452500552
8 Octal 154270264
10 Decimal 28405940
12 Duodecimal 961a758
16 Hexadecimal 1b170b4
20 Vigesimal 8haeh0
36 Base36 gwu5w

Cryptographic Hash Functions

md5 eac9591f8a5323fc60e718f818ea4b5a
sha1 dd8e0953a35c0e210b5791c5264f46806c91f177
sha256 8ee0d5a2f07e813ec710d5eb1f0ca5277399aaa146f5b050c98853b756e29566
sha512 36d3ccab04e574f3aa70d23c683ae2ae03279d7b7203f8426baebcf4becf34e494a1db60ce105f7cdf68ebc73b0dcd4e34d470fd2f406d16579840540160abd0
ripemd-160 f79c1f4936fadae7f3b8b6deffbc07c7a5f9c213

28405940 as geometric shapes

Circle

Radius = n
Diameter 56811880
Circumference 178479784.84462
Area 2.5349430297547E+15

Sphere

Radius = n
Volume 9.6009919475506E+22
Surface area 1.0139772119019E+16
Circumference 178479784.84462

Square

Length = n
Perimeter 113623760
Area 806897427283600
Diagonal 40172065.599956

Cube

Length = n
Surface area 4841384563701600
Volume 2.2920679905572E+22
Space diagonal 49200531.316753

Equilateral Triangle

Length = n
Perimeter 85217820
Area 3.4939683513795E+14
Altitude 24600265.658377

Triangular Pyramid

Length = n
Surface area 3.4939683513795E+14
Volume 2.7012280317727E+21
Height 13390688.533319