20984905 (number)

20984905 is an odd 8-digits composite number following 20984904 and preceding 20984906. In scientific notation, it is written as 2.0984905 × 10^7. The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors. There are 16787920 positive integers (up to 20984905) that are relatively prime to 20984905.

Interesting facts

Basic properties

Name

Name twenty million nine hundred eighty-four thousand nine hundred five

Notation

Scientific notation 2.0984905 × 10^7
Engineering notation 2.0984905 × 10^6

Prime Factorization of 20984905

Prime Factorization 5 × 4196981

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 20984905
Product of the distinct prime numbers

The prime factorization of 20984905 is 5 × 4196981. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 9, 38, 11, 433, 972, 2064, 2128, 24896, 45366, 485859, 473645, 8301880, 7447145, 70151473, 4258729, 186568728, 946463037, 4275700926, 8815355093

Basic calculations (n = 20984905)

Multiplication

n×y
n×2 41969810
n×3 62954715
n×4 83939620
n×5 104924525

Division

n÷y
n÷2 10492452.5
n÷3 6994968.3333333
n÷3 5246226.25
n÷5 4196981

Exponentiation

ny
n2 440366237859025
n3 9.241043666679E+21
n4 1.9392242344611E+29
n5 4.0694436333864E+36

Nth Root

y√n
2√n 4580.9283993531
3√n 275.82629709377
4√n 67.682556093525
5√n 29.132744599653

Divisors of 20984905

1, 5, 4196981, 20984905

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 -20984904
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 20984905 can be divided by 4 positive divisors. The sum of these divisors (counting 20984905) is 1, the average is 0.25.

Base conversion 20984905

Base System Value
2 Binary 1010000000011010001001001
3 Ternary 1110111010212201
4 Quaternary 1100003101021
5 Quinary 20333004110
6 Senary 2025440201
8 Octal 120032111
10 Decimal 20984905
12 Duodecimal 7040061
16 Hexadecimal 1403449
20 Vigesimal 6b3255
36 Base36 chs21

Cryptographic Hash Functions

md5 1452f885ec60347b4dd2a8d6ff23b96b
sha1 83856d62b4eacdc0771a781428baae83c62fda4b
sha256 8f779bffadaf856d27f1961a58dcb9cd99b0b88bbdff0d9b2e25916549718c90
sha512 c3fa323bbf0f1e052ad1a67d2785ce1fdd0c6edbece664472b20f02143d6b1d5bfb4f49de51adf00d21ffeec8e7d43ff423ab6dd8bca40a03fdbf191737dc800
ripemd-160 1cbd60d65a00422c602955796e0d105279c72ce4

20984905 as geometric shapes

Circle

Radius = n
Diameter 41969810
Circumference 131852046.76856
Area 1.3834513377469E+15

Sphere

Radius = n
Volume 3.8708793192988E+22
Surface area 5.5338053509876E+15
Circumference 131852046.76856

Square

Length = n
Perimeter 83939620
Area 440366237859025
Diagonal 29677137.256111

Cube

Length = n
Surface area 2642197427154150
Volume 9.241043666679E+21
Space diagonal 36346921.652006

Equilateral Triangle

Length = n
Perimeter 62954715
Area 1.9068417447745E+14
Altitude 18173460.826003

Triangular Pyramid

Length = n
Surface area 1.9068417447745E+14
Volume 1.089067440325E+21
Height 9892379.0853703