28543721 (number)

28543721 is an odd 8-digits composite number following 28543720 and preceding 28543722. In scientific notation, it is written as 2.8543721 × 10^7. The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors. There are 28051920 positive integers (up to 28543721) that are relatively prime to 28543721.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.8543721 × 10^7
Engineering notation 2.8543721 × 10^6

Prime Factorization of 28543721

Prime Factorization 109 × 131 × 1999

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 28543721
Product of the distinct prime numbers

The prime factorization of 28543721 is 109 × 131 × 1999. Since it has a total of 3 prime factors.

Most popular turbo-numbers

8, 9, 67, 71, 276, 683, 1311, 4846, 64846, 15437, 391167, 790757, 3534784, 2886161, 19964459, 71588031, 579899556, 319687073, 1193349343, 3474762565

Basic calculations (n = 28543721)

Multiplication

n×y
n×2 57087442
n×3 85631163
n×4 114174884
n×5 142718605

Division

n÷y
n÷2 14271860.5
n÷3 9514573.6666667
n÷3 7135930.25
n÷5 5708744.2

Exponentiation

ny
n2 814744008525841
n3 2.3255825665783E+22
n4 6.6380779942876E+29
n5 1.8947544624518E+37

Nth Root

y√n
2√n 5342.6324036003
3√n 305.61185425563
4√n 73.093312988264
5√n 30.981476944665

Divisors of 28543721

1, 109, 131, 1999, 14279, 217891, 261869, 28543721

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28543720
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28543721 can be divided by 8 positive divisors. The sum of these divisors (counting 28543721) is 1, the average is 0.125.

Base conversion 28543721

Base System Value
2 Binary 1101100111000101011101001
3 Ternary 1222201011121212
4 Quaternary 1230320223221
5 Quinary 24301344341
6 Senary 2455442505
8 Octal 154705351
10 Decimal 28543721
12 Duodecimal 9686435
16 Hexadecimal 1b38ae9
20 Vigesimal 8i7j61
36 Base36 gzsh5

Cryptographic Hash Functions

md5 20496ef410c69551436d40eeeeb3e930
sha1 f3c308788d534effbacdd8831664c5350e761a73
sha256 a7c05b335b734300f54709f12440c8a0eda8bab782784046066ecf45206f243d
sha512 e794975d019300f18115a04c21e8b9f795531c089255309895c44bf6044d4b3a3352d5025f106e8212e406db59eb253333a5d4f37758616a98b73d37a47c0fa0
ripemd-160 6276e5651aa1a15ea7a17c5f091993699ca73e8b

28543721 as geometric shapes

Circle

Radius = n
Diameter 57087442
Circumference 179345488.39943
Area 2.5595937917411E+15

Sphere

Radius = n
Volume 9.7413774753053E+22
Surface area 1.0238375166964E+16
Circumference 179345488.39943

Square

Length = n
Perimeter 114174884
Area 814744008525841
Diagonal 40366917.358794

Cube

Length = n
Surface area 4888464051155046
Volume 2.3255825665783E+22
Space diagonal 49439175.009071

Equilateral Triangle

Length = n
Perimeter 85631163
Area 3.5279450448227E+14
Altitude 24719587.504535

Triangular Pyramid

Length = n
Surface area 3.5279450448227E+14
Volume 2.7407253383946E+21
Height 13455639.119598