20008905 (number)

20008905 is an odd 8-digits composite number following 20008904 and preceding 20008906. In scientific notation, it is written as 2.0008905 × 10^7. The sum of its digits is 24. It has a total of 5 prime factors and 24 positive divisors. There are 9144576 positive integers (up to 20008905) that are relatively prime to 20008905.

Interesting facts

Basic properties

Name

Name twenty million eight thousand nine hundred five

Notation

Scientific notation 2.0008905 × 10^7
Engineering notation 2.0008905 × 10^6

Prime Factorization of 20008905

Prime Factorization 5 × 21 × 7 × 7 × 3889

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 2858415
Product of the distinct prime numbers

The prime factorization of 20008905 is 5 × 21 × 7 × 7 × 3889. Since it has a total of 5 prime factors.

Most popular turbo-numbers

3, 3, 55, 24, 147, 257, 5365, 4836, 79734, 60016, 155330, 729115, 1492291, 8061424, 78241714, 46363592, 876387471, 919704560, 2718187736, 8893698109

Basic calculations (n = 20008905)

Multiplication

n×y
n×2 40017810
n×3 60026715
n×4 80035620
n×5 100044525

Division

n÷y
n÷2 10004452.5
n÷3 6669635
n÷3 5002226.25
n÷5 4001781

Exponentiation

ny
n2 400356279299025
n3 8.0106907586477E+21
n4 1.6028515037416E+29
n5 3.2071303467473E+36

Nth Root

y√n
2√n 4473.1314534675
3√n 271.48204216324
4√n 66.881473170583
5√n 28.85656710918

Divisors of 20008905

1, 5, 7, 21, 35, 49, 105, 147, 245, 735, 1029, 3889, 5145, 19445, 27223, 81669, 136115, 190561, 408345, 571683, 952805, 2858415, 4001781, 20008905

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20008904
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20008905 can be divided by 24 positive divisors. The sum of these divisors (counting 20008905) is 1, the average is 0.041666666666667.

Base conversion 20008905

Base System Value
2 Binary 1001100010100111111001001
3 Ternary 1101122120001120
4 Quaternary 1030110333021
5 Quinary 20110241110
6 Senary 1552505453
8 Octal 114247711
10 Decimal 20008905
12 Duodecimal 684b289
16 Hexadecimal 1314fc9
20 Vigesimal 651255
36 Base36 bwuyx

Cryptographic Hash Functions

md5 c755531ef47ad3dc50db8e159810e935
sha1 ecf23ef1c8408556ece6db72e5b00be04700a66e
sha256 46df8b184f9ff652a6de5df60627f21c116f558ba3ecd82dcb9a21bc9eeaea43
sha512 a66bd9614a1c0849ec410f265033fefdf5ba1b8cd6b197a2ed5f87d7eaf9f026024ac8a0d184658ae5e9aed747f2c5c4548241858d711197e61edffb8340c42a
ripemd-160 acc421b42847522916c43d74242db68ed48580fb

20008905 as geometric shapes

Circle

Radius = n
Diameter 40017810
Circumference 125719657.90875
Area 1.2577563458644E+15

Sphere

Radius = n
Volume 3.3555102983396E+22
Surface area 5.0310253834574E+15
Circumference 125719657.90875

Square

Length = n
Perimeter 80035620
Area 400356279299025
Diagonal 28296864.819235

Cube

Length = n
Surface area 2402137675794150
Volume 8.0106907586477E+21
Space diagonal 34656440.063819

Equilateral Triangle

Length = n
Perimeter 60026715
Area 1.7335935421879E+14
Altitude 17328220.031909

Triangular Pyramid

Length = n
Surface area 1.7335935421879E+14
Volume 9.4406895957136E+20
Height 9432288.2730783