28681738 (number)

28681738 is an even 8-digits composite number following 28681737 and preceding 28681739. In scientific notation, it is written as 2.8681738 × 10^7. The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors. There are 14340868 positive integers (up to 28681738) that are relatively prime to 28681738.

Interesting facts

Basic properties

Name

Name twenty-eight million six hundred eighty-one thousand seven hundred thirty-eight

Notation

Scientific notation 2.8681738 × 10^7
Engineering notation 2.8681738 × 10^6

Prime Factorization of 28681738

Prime Factorization 2 × 14340869

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 28681738
Product of the distinct prime numbers

The prime factorization of 28681738 is 2 × 14340869. Since it has a total of 2 prime factors.

Most popular turbo-numbers

8, 3, 70, 23, 171, 783, 5780, 5473, 19408, 39588, 663310, 823763, 1254377, 6323831, 75221303, 70069023, 346024381, 206793468, 6642364591, 1558197594

Basic calculations (n = 28681738)

Multiplication

n×y
n×2 57363476
n×3 86045214
n×4 114726952
n×5 143408690

Division

n÷y
n÷2 14340869
n÷3 9560579.3333333
n÷3 7170434.5
n÷5 5736347.6

Exponentiation

ny
n2 822642094700644
n3 2.3594805027975E+22
n4 6.7674001597346E+29
n5 1.9410079832267E+37

Nth Root

y√n
2√n 5355.5334001386
3√n 306.10363584949
4√n 73.181509960772
5√n 31.011380013035

Divisors of 28681738

1, 2, 14340869, 28681738

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 -28681737
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 28681738 can be divided by 4 positive divisors. The sum of these divisors (counting 28681738) is 1, the average is 0.25.

Base conversion 28681738

Base System Value
2 Binary 1101101011010011000001010
3 Ternary 1222222011221121
4 Quaternary 1231122120022
5 Quinary 24320303423
6 Senary 2502425454
8 Octal 155323012
10 Decimal 28681738
12 Duodecimal 973228a
16 Hexadecimal 1b5a60a
20 Vigesimal 8j546i
36 Base36 h2qyy

Cryptographic Hash Functions

md5 cb211b0f48cb58e359714c22d479ac67
sha1 f47080f7a89ccf53a29a3281c3d60b663a19761c
sha256 e103b46b05d4be8bfb31e17907dc9d6ad14d4f9b02d0b07f6c9b441ca28bb538
sha512 29953eeca4ceecf2e8c39794566a03f736417737114d9d2baac883bc22caef6c41c987e3185879a8160c28f13de37473cb16f33d0d9d7e56d7d0d655d73af13c
ripemd-160 56f9c4773fcf6e31d7a2450e5a84f7f95c4e2a86

28681738 as geometric shapes

Circle

Radius = n
Diameter 57363476
Circumference 180212674.78597
Area 2.5844063612453E+15

Sphere

Radius = n
Volume 9.8833688185027E+22
Surface area 1.0337625444981E+16
Circumference 180212674.78597

Square

Length = n
Perimeter 114726952
Area 822642094700644
Diagonal 40562102.872032

Cube

Length = n
Surface area 4935852568203864
Volume 2.3594805027975E+22
Space diagonal 49678227.465379

Equilateral Triangle

Length = n
Perimeter 86045214
Area 3.562144761166E+14
Altitude 24839113.732689

Triangular Pyramid

Length = n
Surface area 3.562144761166E+14
Volume 2.7806744393426E+21
Height 13520700.957344