28105872 (number)

28105872 is an even 8-digits composite number following 28105871 and preceding 28105873. In scientific notation, it is written as 2.8105872 × 10^7. The sum of its digits is 33. It has a total of 8 prime factors and 80 positive divisors. There are 8870400 positive integers (up to 28105872) that are relatively prime to 28105872.

Interesting facts

Basic properties

Name

Name twenty-eight million one hundred five thousand eight hundred seventy-two

Notation

Scientific notation 2.8105872 × 10^7
Engineering notation 2.8105872 × 10^6

Prime Factorization of 28105872

Prime Factorization 2 × 2 × 2 × 2 × 3 × 61 × 29 × 331

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 8
Total number of prime factors
rad Radical 3513234
Product of the distinct prime numbers

The prime factorization of 28105872 is 2 × 2 × 2 × 2 × 3 × 61 × 29 × 331. Since it has a total of 8 prime factors.

Most popular turbo-numbers

4, 4, 96, 4, 268, 778, 3218, 1918, 67320, 91358, 602882, 294800, 7740949, 873724, 89292881, 46264976, 443107449, 143177877, 8364856929, 7090441872

Basic calculations (n = 28105872)

Multiplication

n×y
n×2 56211744
n×3 84317616
n×4 112423488
n×5 140529360

Division

n÷y
n÷2 14052936
n÷3 9368624
n÷3 7026468
n÷5 5621174.4

Exponentiation

ny
n2 789940040880384
n3 2.2201953676659E+22
n4 6.240052681861E+29
n5 1.7538212194964E+37

Nth Root

y√n
2√n 5301.4971470331
3√n 304.04114170794
4√n 72.811380614799
5√n 30.88583968009

Divisors of 28105872

1, 2, 3, 4, 6, 8, 12, 16, 24, 29, 48, 58, 61, 87, 116, 122, 174, 183, 232, 244, 331, 348, 366, 464, 488, 662, 696, 732, 976, 993, 1324, 1392, 1464, 1769, 1986, 2648, 2928, 3538, 3972, 5296, 5307, 7076, 7944, 9599, 10614, 14152, 15888, 19198, 20191, 21228, 28304, 28797, 38396, 40382, 42456, 57594, 60573, 76792, 80764, 84912, 115188, 121146, 153584, 161528, 230376, 242292, 323056, 460752, 484584, 585539, 969168, 1171078, 1756617, 2342156, 3513234, 4684312, 7026468, 9368624, 14052936, 28105872

80 divisors

τ Total Divisors 80
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28105871
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0125
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 80
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28105872 can be divided by 80 positive divisors. The sum of these divisors (counting 28105872) is 1, the average is 0.0125.

Base conversion 28105872

Base System Value
2 Binary 1101011001101110010010000
3 Ternary 1221212221000020
4 Quaternary 1223031302100
5 Quinary 24143341442
6 Senary 2442223440
8 Octal 153156220
10 Decimal 28105872
12 Duodecimal 94b4b80
16 Hexadecimal 1acdc90
20 Vigesimal 8fd4dc
36 Base36 gqemo

Cryptographic Hash Functions

md5 80ef4b1538bb5ebcb157fc9b5bb0b95f
sha1 8df770b921996b336f678380763157b4cb123bf5
sha256 85ea9e845ca65179c58adb270f0d87e632ba28fe88773bc66a03d5a494c46515
sha512 45f16b9482699804999f5b7c90281a30464ca76f7dcd07dfbe2f7201e3fe05c3528f9463bec022dc3d30e47cc444d366732e31da87abe126b1d09c03bf47decf
ripemd-160 2c7a799d401715563054c34274557487e95a594a

28105872 as geometric shapes

Circle

Radius = n
Diameter 56211744
Circumference 176594401.99587
Area 2.4816698292062E+15

Sphere

Radius = n
Volume 9.299932608791E+22
Surface area 9.9266793168249E+15
Circumference 176594401.99587

Square

Length = n
Perimeter 112423488
Area 789940040880384
Diagonal 39747705.364722

Cube

Length = n
Surface area 4739640245282304
Volume 2.2201953676659E+22
Space diagonal 48680798.295027

Equilateral Triangle

Length = n
Perimeter 84317616
Area 3.4205407143447E+14
Altitude 24340399.147514

Triangular Pyramid

Length = n
Surface area 3.4205407143447E+14
Volume 2.6165253333925E+21
Height 13249235.121574