20409945 (number)

20409945 is an odd 8-digits composite number following 20409944 and preceding 20409946. In scientific notation, it is written as 2.0409945 × 10^7. The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors. There are 10244864 positive integers (up to 20409945) that are relatively prime to 20409945.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0409945 × 10^7
Engineering notation 2.0409945 × 10^6

Prime Factorization of 20409945

Prime Factorization 3 × 5 × 17 × 80039

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20409945
Product of the distinct prime numbers

The prime factorization of 20409945 is 3 × 5 × 17 × 80039. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 4, 27, 43, 74, 447, 445, 224, 30248, 52987, 367045, 839873, 4446896, 9650773, 849355, 97168915, 247089022, 669389255, 9731785928, 983336601

Basic calculations (n = 20409945)

Multiplication

n×y
n×2 40819890
n×3 61229835
n×4 81639780
n×5 102049725

Division

n÷y
n÷2 10204972.5
n÷3 6803315
n÷3 5102486.25
n÷5 4081989

Exponentiation

ny
n2 416565854903025
n3 8.5020861874487E+21
n4 1.7352711147109E+29
n5 3.5416788011338E+36

Nth Root

y√n
2√n 4517.7367121159
3√n 273.28383580543
4√n 67.214110959797
5√n 28.971325588128

Divisors of 20409945

1, 3, 5, 15, 17, 51, 85, 255, 80039, 240117, 400195, 1200585, 1360663, 4081989, 6803315, 20409945

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20409944
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20409945 can be divided by 16 positive divisors. The sum of these divisors (counting 20409945) is 1, the average is 0.0625.

Base conversion 20409945

Base System Value
2 Binary 1001101110110111001011001
3 Ternary 1102101221011220
4 Quaternary 1031312321121
5 Quinary 20211104240
6 Senary 2005242253
8 Octal 115667131
10 Decimal 20409945
12 Duodecimal 6a03389
16 Hexadecimal 1376e59
20 Vigesimal 67b4h5
36 Base36 c5gex

Cryptographic Hash Functions

md5 e518b3dfcb8b632c36d7260f3b6e646d
sha1 940a4b13ff0111cf1b4df51659da6a1aea946ca9
sha256 d82d7c42d6ea1b4d7bc337d593b338415f4c9d47a946e5f40af1ceb8bfbc2756
sha512 58c6541b7c465e70c718c32c79e5a25e0f3392044af66e78fb35117bfaa30a0f2d26d2e4e9cb0438d8fc28765b31cd91275f05c61f79c663d2e4c24b6955be02
ripemd-160 4eb111465847b82e76df7b8235246dfc8ea6b784

20409945 as geometric shapes

Circle

Radius = n
Diameter 40819890
Circumference 128239466.54434
Area 1.3086802294997E+15

Sphere

Radius = n
Volume 3.5613455342235E+22
Surface area 5.2347209179988E+15
Circumference 128239466.54434

Square

Length = n
Perimeter 81639780
Area 416565854903025
Diagonal 28864021.026289

Cube

Length = n
Surface area 2499395129418150
Volume 8.5020861874487E+21
Space diagonal 35351061.719686

Equilateral Triangle

Length = n
Perimeter 61229835
Area 1.803783063476E+14
Altitude 17675530.859843

Triangular Pyramid

Length = n
Surface area 1.803783063476E+14
Volume 1.0019804662296E+21
Height 9621340.3420963