28742738 (number)

28742738 is an even 8-digits composite number following 28742737 and preceding 28742739. In scientific notation, it is written as 2.8742738 × 10^7. The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors. There are 14371368 positive integers (up to 28742738) that are relatively prime to 28742738.

Interesting facts

Basic properties

Name

Name twenty-eight million seven hundred forty-two thousand seven hundred thirty-eight

Notation

Scientific notation 2.8742738 × 10^7
Engineering notation 2.8742738 × 10^6

Prime Factorization of 28742738

Prime Factorization 2 × 14371369

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 28742738
Product of the distinct prime numbers

The prime factorization of 28742738 is 2 × 14371369. Since it has a total of 2 prime factors.

Most popular turbo-numbers

10, 9, 15, 100, 414, 87, 1565, 1254, 31480, 3765, 948324, 305453, 6030962, 8815062, 1640794, 77880531, 900197399, 298799372, 1020568140, 8420383232

Basic calculations (n = 28742738)

Multiplication

n×y
n×2 57485476
n×3 86228214
n×4 114970952
n×5 143713690

Division

n÷y
n÷2 14371369
n÷3 9580912.6666667
n÷3 7185684.5
n÷5 5748547.6

Exponentiation

ny
n2 826144987736644
n3 2.3745668932528E+22
n4 6.8251554076238E+29
n5 1.9617365369061E+37

Nth Root

y√n
2√n 5361.2254196219
3√n 306.32048812025
4√n 73.220389370871
5√n 31.024559736925

Divisors of 28742738

1, 2, 14371369, 28742738

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 -28742737
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 28742738 can be divided by 4 positive divisors. The sum of these divisors (counting 28742738) is 1, the average is 0.25.

Base conversion 28742738

Base System Value
2 Binary 1101101101001010001010010
3 Ternary 2000002021121212
4 Quaternary 1231221101102
5 Quinary 24324231423
6 Senary 2504020122
8 Octal 155512122
10 Decimal 28742738
12 Duodecimal 9761642
16 Hexadecimal 1b69452
20 Vigesimal 8jcggi
36 Base36 h421e

Cryptographic Hash Functions

md5 41c59cce1595069190fa0d8540268eb6
sha1 6cb3a55240eb5cdc56b93d797f28489e53f20ce7
sha256 84ca8dcbfb8c1b5f8ef756224af35f42365848b44571818dc262f9387f3c4bc3
sha512 9518e40e42a10711a6408f03d963b611d164d837afa4c7c1494c0ce1f8aebbdac058a55bbfdf07857e0bdf56cee9dd2026225542ca0317247f3702d3462d6a33
ripemd-160 765dc662e5f5d51e88715f4cfd9be3dca511af39

28742738 as geometric shapes

Circle

Radius = n
Diameter 57485476
Circumference 180595949.08971
Area 2.5954110242735E+15

Sphere

Radius = n
Volume 9.9465625430672E+22
Surface area 1.0381644097094E+16
Circumference 180595949.08971

Square

Length = n
Perimeter 114970952
Area 826144987736644
Diagonal 40648369.899337

Cube

Length = n
Surface area 4956869926419864
Volume 2.3745668932528E+22
Space diagonal 49783882.564641

Equilateral Triangle

Length = n
Perimeter 86228214
Area 3.5773127329456E+14
Altitude 24891941.28232

Triangular Pyramid

Length = n
Surface area 3.5773127329456E+14
Volume 2.7984539210002E+21
Height 13549456.633112