28908643 (number)

28908643 is an odd 8-digits composite number following 28908642 and preceding 28908644. In scientific notation, it is written as 2.8908643 × 10^7. The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors. There are 28418608 positive integers (up to 28908643) that are relatively prime to 28908643.

Interesting facts

Basic properties

Name

Name twenty-eight million nine hundred eight thousand six hundred forty-three

Notation

Scientific notation 2.8908643 × 10^7
Engineering notation 2.8908643 × 10^6

Prime Factorization of 28908643

Prime Factorization 59 × 489977

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 28908643
Product of the distinct prime numbers

The prime factorization of 28908643 is 59 × 489977. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 28908643)

Multiplication

n×y
n×2 57817286
n×3 86725929
n×4 115634572
n×5 144543215

Division

n÷y
n÷2 14454321.5
n÷3 9636214.3333333
n÷3 7227160.75
n÷5 5781728.6

Exponentiation

ny
n2 835709640101449
n3 2.4159231637351E+22
n4 6.9841060255849E+29
n5 2.0190102776778E+37

Nth Root

y√n
2√n 5376.6758317756
3√n 306.9087252131
4√n 73.325819680216
5√n 31.060292496582

Divisors of 28908643

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 -28908642
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 28908643 can be divided by 4 positive divisors. The sum of these divisors (counting 28908643) is 1, the average is 0.25.

Base conversion 28908643

Base System Value
2 Binary 1101110010001110001100011
3 Ternary 2000101201012111
4 Quaternary 1232101301203
5 Quinary 24400034033
6 Senary 2511340151
8 Octal 156216143
10 Decimal 28908643
12 Duodecimal 9821657
16 Hexadecimal 1b91c63
20 Vigesimal 90dbc3
36 Base36 h7m1v

Cryptographic Hash Functions

md5 9dcbff148aeaf3faa564d3abd5d7e213
sha1 3b319b4de31dc3fff2383922e8b6378a5118d356
sha256 f661ab71479c1ea086c1157b8a6f1c9dca3d20c66aeff39ba26ded7175e774df
sha512 94a7f7477144f7b3553888b0e5f3daba9e6f5598bd972183ce33924a0399ef4d5afd2b89cb9f4db91e8431e351e0a3beb7763d078751ab63f070940fe1c746a0
ripemd-160 5cf46b5b8445c434833298d9fe06587344d613be

28908643 as geometric shapes

Circle

Radius = n
Diameter 57817286
Circumference 181638360.9481
Area 2.6254592658769E+15

Sphere

Radius = n
Volume 1.011979528377E+23
Surface area 1.0501837063508E+16
Circumference 181638360.9481

Square

Length = n
Perimeter 115634572
Area 835709640101449
Diagonal 40882995.000402

Cube

Length = n
Surface area 5014257840608694
Volume 2.4159231637351E+22
Space diagonal 50071238.45387

Equilateral Triangle

Length = n
Perimeter 86725929
Area 3.618728892577E+14
Altitude 25035619.226935

Triangular Pyramid

Length = n
Surface area 3.618728892577E+14
Volume 2.8471927531713E+21
Height 13627665.000134