28105720 (number)

28105720 is an even 8-digits composite number following 28105719 and preceding 28105721. In scientific notation, it is written as 2.8105720 × 10^7. The sum of its digits is 25. It has a total of 6 prime factors and 32 positive divisors. There are 11214720 positive integers (up to 28105720) that are relatively prime to 28105720.

Interesting facts

Basic properties

Name

Name twenty-eight million one hundred five thousand seven hundred twenty

Notation

Scientific notation 2.8105720 × 10^7
Engineering notation 2.8105720 × 10^6

Prime Factorization of 28105720

Prime Factorization 2 × 2 × 2 × 5 × 661 × 1063

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 7026430
Product of the distinct prime numbers

The prime factorization of 28105720 is 2 × 2 × 2 × 5 × 661 × 1063. Since it has a total of 6 prime factors.

Most popular turbo-numbers

8, 4, 79, 29, 263, 846, 9361, 2109, 94412, 45416, 946480, 237388, 8848433, 6169612, 24203092, 83865235, 585545861, 315951473, 1813091593, 6859563353

Basic calculations (n = 28105720)

Multiplication

n×y
n×2 56211440
n×3 84317160
n×4 112422880
n×5 140528600

Division

n÷y
n÷2 14052860
n÷3 9368573.3333333
n÷3 7026430
n÷5 5621144

Exponentiation

ny
n2 789931496718400
n3 2.2201593465948E+22
n4 6.2399176950777E+29
n5 1.753773795609E+37

Nth Root

y√n
2√n 5301.4828114406
3√n 304.0405936097
4√n 72.811282171382
5√n 30.885806273136

Divisors of 28105720

1, 2, 4, 5, 8, 10, 20, 40, 661, 1063, 1322, 2126, 2644, 3305, 4252, 5288, 5315, 6610, 8504, 10630, 13220, 21260, 26440, 42520, 702643, 1405286, 2810572, 3513215, 5621144, 7026430, 14052860, 28105720

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 -28105719
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 28105720 can be divided by 32 positive divisors. The sum of these divisors (counting 28105720) is 1, the average is 0.03125.

Base conversion 28105720

Base System Value
2 Binary 1101011001101101111111000
3 Ternary 1221212220210121
4 Quaternary 1223031233320
5 Quinary 24143340340
6 Senary 2442223024
8 Octal 153155770
10 Decimal 28105720
12 Duodecimal 94b4a74
16 Hexadecimal 1acdbf8
20 Vigesimal 8fd460
36 Base36 gqeig

Cryptographic Hash Functions

md5 89851d6242c4bf46472db9e9545458a1
sha1 710ee1cf17610a347dae77b5519af0236eb61585
sha256 a2618d50a58b4a8c1ea60589ad5d36b6106f5daab81c8d15d9baacf7c8dd74cc
sha512 2305001ede2899065d1f2b11b7b5c6e4dc2c1da1baa523dcdd444f1aa7fdcfcb22838ec9da99ae948bd16b46a10157fb61b4b934e11c208aa752ed7d3ed0be78
ripemd-160 1eabc682dc4543c5ab7c25176ea830036a4b626d

28105720 as geometric shapes

Circle

Radius = n
Diameter 56211440
Circumference 176593446.9517
Area 2.4816429869297E+15

Sphere

Radius = n
Volume 9.2997817240814E+22
Surface area 9.9265719477189E+15
Circumference 176593446.9517

Square

Length = n
Perimeter 112422880
Area 789931496718400
Diagonal 39747490.404261

Cube

Length = n
Surface area 4739588980310400
Volume 2.2201593465948E+22
Space diagonal 48680535.023305

Equilateral Triangle

Length = n
Perimeter 84317160
Area 3.420503717038E+14
Altitude 24340267.511652

Triangular Pyramid

Length = n
Surface area 3.420503717038E+14
Volume 2.6164828821532E+21
Height 13249163.468087