28009021 (number)

28009021 is an odd 8-digits composite number following 28009020 and preceding 28009022. In scientific notation, it is written as 2.8009021 × 10^7. The sum of its digits is 22. It has a total of 2 prime factors and 4 positive divisors. There are 26534844 positive integers (up to 28009021) that are relatively prime to 28009021.

Interesting facts

Basic properties

Name

Name twenty-eight million nine thousand twenty-one

Notation

Scientific notation 2.8009021 × 10^7
Engineering notation 2.8009021 × 10^6

Prime Factorization of 28009021

Prime Factorization 19 × 1474159

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 28009021
Product of the distinct prime numbers

The prime factorization of 28009021 is 19 × 1474159. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 28009021)

Multiplication

n×y
n×2 56018042
n×3 84027063
n×4 112036084
n×5 140045105

Division

n÷y
n÷2 14004510.5
n÷3 9336340.3333333
n÷3 7002255.25
n÷5 5601804.2

Exponentiation

ny
n2 784505257378441
n3 2.1973224228523E+22
n4 6.1544849885441E+29
n5 1.7238109928832E+37

Nth Root

y√n
2√n 5292.3549578614
3√n 303.69150448259
4√n 72.748573579565
5√n 30.864524161625

Divisors of 28009021

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 -28009020
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 28009021 can be divided by 4 positive divisors. The sum of these divisors (counting 28009021) is 1, the average is 0.25.

Base conversion 28009021

Base System Value
2 Binary 1101010110110001000111101
3 Ternary 1221201000011011
4 Quaternary 1222312020331
5 Quinary 24132242041
6 Senary 2440155221
8 Octal 152661075
10 Decimal 28009021
12 Duodecimal 9468b11
16 Hexadecimal 1ab623d
20 Vigesimal 8f12b1
36 Base36 gobwd

Cryptographic Hash Functions

md5 bfe8a5a79b3e64dcd45bdc8016f0894c
sha1 69fe1913f1513a92934ad6b0e3e7f1287bde2120
sha256 b6b0dac5083c493731453f9bd359b5826ac3f5465e8e2fda8c2515f4a3f260ce
sha512 09844a459396fdef522b930617f601dbdc81b242468afd8019e3bf4e0f18e3b5de6b33a9346ec7772dfc35bad41be1abdc55da2238e2796996ca329e30df8348
ripemd-160 3361a3bd07000b6fa35caaca7f71bd851d2adc2c

28009021 as geometric shapes

Circle

Radius = n
Diameter 56018042
Circumference 175985869.21568
Area 2.4645959532827E+15

Sphere

Radius = n
Volume 9.2041226416013E+22
Surface area 9.8583838131307E+15
Circumference 175985869.21568

Square

Length = n
Perimeter 112036084
Area 784505257378441
Diagonal 39610737.366993

Cube

Length = n
Surface area 4707031544270646
Volume 2.1973224228523E+22
Space diagonal 48513047.442264

Equilateral Triangle

Length = n
Perimeter 84027063
Area 3.3970074114609E+14
Altitude 24256523.721132

Triangular Pyramid

Length = n
Surface area 3.3970074114609E+14
Volume 2.5895693094202E+21
Height 13203579.122331