20091908 (number)

20091908 is an even 8-digits composite number following 20091907 and preceding 20091909. In scientific notation, it is written as 2.0091908 × 10^7. The sum of its digits is 29. It has a total of 4 prime factors and 12 positive divisors. There are 9966600 positive integers (up to 20091908) that are relatively prime to 20091908.

Interesting facts

Basic properties

Name

Name twenty million ninety-one thousand nine hundred eight

Notation

Scientific notation 2.0091908 × 10^7
Engineering notation 2.0091908 × 10^6

Prime Factorization of 20091908

Prime Factorization 2 × 2 × 127 × 39551

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 10045954
Product of the distinct prime numbers

The prime factorization of 20091908 is 2 × 2 × 127 × 39551. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 4, 64, 4, 551, 276, 1229, 5774, 86400, 60805, 899799, 862521, 8889604, 2383786, 37628811, 23950622, 620859078, 192493420, 6101342497, 2416194243

Basic calculations (n = 20091908)

Multiplication

n×y
n×2 40183816
n×3 60275724
n×4 80367632
n×5 100459540

Division

n÷y
n÷2 10045954
n÷3 6697302.6666667
n÷3 5022977
n÷5 4018381.6

Exponentiation

ny
n2 403684767080464
n3 8.1107972011821E+21
n4 1.6296139117281E+29
n5 3.2742052789961E+36

Nth Root

y√n
2√n 4482.3998036766
3√n 271.85692085708
4√n 66.950726685202
5√n 28.880468638301

Divisors of 20091908

1, 2, 4, 127, 254, 508, 39551, 79102, 158204, 5022977, 10045954, 20091908

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20091907
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20091908 can be divided by 12 positive divisors. The sum of these divisors (counting 20091908) is 1, the average is 0.083333333333333.

Base conversion 20091908

Base System Value
2 Binary 1001100101001010000000100
3 Ternary 1101210202220202
4 Quaternary 1030221100010
5 Quinary 20120420113
6 Senary 1554350032
8 Octal 114512004
10 Decimal 20091908
12 Duodecimal 688b318
16 Hexadecimal 1329404
20 Vigesimal 65b9f8
36 Base36 byn0k

Cryptographic Hash Functions

md5 0b31668c0fc28e7de2f9557b9059f5c7
sha1 6a17c7c01732ea0d4b186c9c6c715181a3c6ecd7
sha256 7d869ad4f34ee941b5734be6bc330847eef91a792a5f0f200ad0f48d0add4919
sha512 1850cb67034b50c53727db8febe518f9e559ba35e6188f66457ff3e52c90b24e7dbe4b44a589b2b14093e642346d961764c60b08048955d8740b632691271d96
ripemd-160 4f2e52b132a63a76aec8903dc0a520b1b5d41574

20091908 as geometric shapes

Circle

Radius = n
Diameter 40183816
Circumference 126241181.1388
Area 1.2682130986261E+15

Sphere

Radius = n
Volume 3.397442786932E+22
Surface area 5.0728523945044E+15
Circumference 126241181.1388

Square

Length = n
Perimeter 80367632
Area 403684767080464
Diagonal 28414248.787552

Cube

Length = n
Surface area 2422108602482784
Volume 8.1107972011821E+21
Space diagonal 34800205.477

Equilateral Triangle

Length = n
Perimeter 60275724
Area 1.7480063170624E+14
Altitude 17400102.7385

Triangular Pyramid

Length = n
Surface area 1.7480063170624E+14
Volume 9.5586661696412E+20
Height 9471416.2625175