20081921 (number)

20081921 is an odd 8-digits composite number following 20081920 and preceding 20081922. In scientific notation, it is written as 2.0081921 × 10^7. The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors. There are 19166400 positive integers (up to 20081921) that are relatively prime to 20081921.

Interesting facts

Basic properties

Name

Name twenty million eighty-one thousand nine hundred twenty-one

Notation

Scientific notation 2.0081921 × 10^7
Engineering notation 2.0081921 × 10^6

Prime Factorization of 20081921

Prime Factorization 23 × 1201 × 727

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 20081921
Product of the distinct prime numbers

The prime factorization of 20081921 is 23 × 1201 × 727. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 20081921)

Multiplication

n×y
n×2 40163842
n×3 60245763
n×4 80327684
n×5 100409605

Division

n÷y
n÷2 10040960.5
n÷3 6693973.6666667
n÷3 5020480.25
n÷5 4016384.2

Exponentiation

ny
n2 403283551050241
n3 8.0987084127904E+21
n4 1.6263762254769E+29
n5 3.2660758876306E+36

Nth Root

y√n
2√n 4481.2856414203
3√n 271.81186980065
4√n 66.942405405097
5√n 28.877596968724

Divisors of 20081921

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 -20081920
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 20081921 can be divided by 8 positive divisors. The sum of these divisors (counting 20081921) is 1, the average is 0.125.

Base conversion 20081921

Base System Value
2 Binary 1001100100110110100000001
3 Ternary 1101210021012212
4 Quaternary 1030212310001
5 Quinary 20120110141
6 Senary 1554231505
8 Octal 114466401
10 Decimal 20081921
12 Duodecimal 6885595
16 Hexadecimal 1326d01
20 Vigesimal 65a4g1
36 Base36 byfb5

Cryptographic Hash Functions

md5 28d37892547936b73f4c2e9794f11b12
sha1 6a7a76d74072e09551ff32f00a02753904ef03da
sha256 8ae8a3c303664dfd445230beed593cac8b0e1dcd8f07e268e4571e3a13b6a45a
sha512 3b2432d5f989607176d36cdda693d08a4ddc89f5584a9387fc8ee12ebfd1cf354d24178af392db31e44b973a0181838b61eea4df17117d0cb0172bf1c5fc74be
ripemd-160 517e88dca7dea579e8f4958a25e7e0dcdeac8292

20081921 as geometric shapes

Circle

Radius = n
Diameter 40163842
Circumference 126178430.96714
Area 1.266952641293E+15

Sphere

Radius = n
Volume 3.3923790470918E+22
Surface area 5.0678105651722E+15
Circumference 126178430.96714

Square

Length = n
Perimeter 80327684
Area 403283551050241
Diagonal 28400125.036705

Cube

Length = n
Surface area 2419701306301446
Volume 8.0987084127904E+21
Space diagonal 34782907.485584

Equilateral Triangle

Length = n
Perimeter 60245763
Area 1.7462690006895E+14
Altitude 17391453.742792

Triangular Pyramid

Length = n
Surface area 1.7462690006895E+14
Volume 9.5444193958944E+20
Height 9466708.3455684