20187909 (number)

20187909 is an odd 8-digits composite number following 20187908 and preceding 20187910. In scientific notation, it is written as 2.0187909 × 10^7. The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors. There are 11446848 positive integers (up to 20187909) that are relatively prime to 20187909.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0187909 × 10^7
Engineering notation 2.0187909 × 10^6

Prime Factorization of 20187909

Prime Factorization 3 × 21 × 137 × 2339

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20187909
Product of the distinct prime numbers

The prime factorization of 20187909 is 3 × 21 × 137 × 2339. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 9, 54, 15, 609, 878, 3804, 1661, 24265, 58627, 359363, 293311, 5332577, 2260116, 9053087, 37854748, 953665737, 424824241, 9371030539, 9248117721

Basic calculations (n = 20187909)

Multiplication

n×y
n×2 40375818
n×3 60563727
n×4 80751636
n×5 100939545

Division

n÷y
n÷2 10093954.5
n÷3 6729303
n÷3 5046977.25
n÷5 4037581.8

Exponentiation

ny
n2 407551669792281
n3 8.2276160225646E+21
n4 1.6609836355048E+29
n5 3.3531786484059E+36

Nth Root

y√n
2√n 4493.0957034098
3√n 272.28921892741
4√n 67.030557982236
5√n 28.908014752913

Divisors of 20187909

1, 3, 21, 63, 137, 411, 2339, 2877, 7017, 8631, 49119, 147357, 320443, 961329, 6729303, 20187909

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 -20187908
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 20187909 can be divided by 16 positive divisors. The sum of these divisors (counting 20187909) is 1, the average is 0.0625.

Base conversion 20187909

Base System Value
2 Binary 1001101000000101100000101
3 Ternary 1101222122121100
4 Quaternary 1031000230011
5 Quinary 20132003114
6 Senary 2000410313
8 Octal 115005405
10 Decimal 20187909
12 Duodecimal 6916999
16 Hexadecimal 1340b05
20 Vigesimal 6639f9
36 Base36 c0p39

Cryptographic Hash Functions

md5 84956507599df6fe3283d22d4458d3fe
sha1 ba6294872de6e22bd3f5c63fb84dd83db7d17417
sha256 3c51687a134ff81b8c1930520b628b6c6e0db920dcc1c049a55d4ab3822214dc
sha512 06126df3eaff1c4648aec7c2477abfcb30808f7cf6049b605adc77ba78f66e4b7bff40c99b8984dc233d09de8b1be8a2bd4412b9952f7ea0ae589d167c3c34d2
ripemd-160 0dfdd061866ac474cedd36fb6882a86aea231f61

20187909 as geometric shapes

Circle

Radius = n
Diameter 40375818
Circumference 126844373.21148
Area 1.2803613317777E+15

Sphere

Radius = n
Volume 3.4463757404062E+22
Surface area 5.1214453271107E+15
Circumference 126844373.21148

Square

Length = n
Perimeter 80751636
Area 407551669792281
Diagonal 28550014.703754

Cube

Length = n
Surface area 2445310018753686
Volume 8.2276160225646E+21
Space diagonal 34966484.086577

Equilateral Triangle

Length = n
Perimeter 60563727
Area 1.7647504969744E+14
Altitude 17483242.043289

Triangular Pyramid

Length = n
Surface area 1.7647504969744E+14
Volume 9.6963384709242E+20
Height 9516671.567918