28005621 (number)

28005621 is an odd 8-digits composite number following 28005620 and preceding 28005622. In scientific notation, it is written as 2.8005621 × 10^7. The sum of its digits is 24. It has a total of 2 prime factors and 4 positive divisors. There are 16003200 positive integers (up to 28005621) that are relatively prime to 28005621.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.8005621 × 10^7
Engineering notation 2.8005621 × 10^6

Prime Factorization of 28005621

Prime Factorization 21 × 1333601

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 28005621
Product of the distinct prime numbers

The prime factorization of 28005621 is 21 × 1333601. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 28005621)

Multiplication

n×y
n×2 56011242
n×3 84016863
n×4 112022484
n×5 140028105

Division

n÷y
n÷2 14002810.5
n÷3 9335207
n÷3 7001405.25
n÷5 5601124.2

Exponentiation

ny
n2 784314807595641
n3 2.1965223246211E+22
n4 6.1514971741379E+29
n5 1.7227649844148E+37

Nth Root

y√n
2√n 5292.0337300512
3√n 303.67921566919
4√n 72.746365751502
5√n 30.86377479964

Divisors of 28005621

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 -28005620
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 28005621 can be divided by 4 positive divisors. The sum of these divisors (counting 28005621) is 1, the average is 0.25.

Base conversion 28005621

Base System Value
2 Binary 1101010110101010011110101
3 Ternary 1221200211111020
4 Quaternary 1222311103311
5 Quinary 24132134441
6 Senary 2440131353
8 Octal 152652365
10 Decimal 28005621
12 Duodecimal 9466b59
16 Hexadecimal 1ab54f5
20 Vigesimal 8f0e11
36 Base36 go99x

Cryptographic Hash Functions

md5 a46328ca07deeb51d92e26562b500649
sha1 56a19b41f2dc42ca195d6fcc4231f123358eb5f3
sha256 1c75808d1a90c3bb61958a0ad81a5f4447dcbfcc13a5fd22e413bcfaf233e245
sha512 3358a2df3e21b0be30090bcf083f288c6af40540de0749287b16e3480707649c0fb5a1869977b7173ca7cf4356146886c98739510633b430c7d39cea877dae2a
ripemd-160 4baa2e4f65a008d323b9b5564270835b178f0ed6

28005621 as geometric shapes

Circle

Radius = n
Diameter 56011242
Circumference 175964506.38564
Area 2.4639976376442E+15

Sphere

Radius = n
Volume 9.2007711979677E+22
Surface area 9.8559905505766E+15
Circumference 175964506.38564

Square

Length = n
Perimeter 112022484
Area 784314807595641
Diagonal 39605929.040881

Cube

Length = n
Surface area 4705888845573846
Volume 2.1965223246211E+22
Space diagonal 48507158.469518

Equilateral Triangle

Length = n
Perimeter 84016863
Area 3.3961827397106E+14
Altitude 24253579.234759

Triangular Pyramid

Length = n
Surface area 3.3961827397106E+14
Volume 2.5886263846121E+21
Height 13201976.34696