20809731 (number)

20809731 is an odd 8-digits composite number following 20809730 and preceding 20809732. In scientific notation, it is written as 2.0809731 × 10^7. The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors. There are 12944448 positive integers (up to 20809731) that are relatively prime to 20809731.

Interesting facts

Basic properties

Name

Name twenty million eight hundred nine thousand seven hundred thirty-one

Notation

Scientific notation 2.0809731 × 10^7
Engineering notation 2.0809731 × 10^6

Prime Factorization of 20809731

Prime Factorization 19 × 3 × 67 × 5449

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20809731
Product of the distinct prime numbers

The prime factorization of 20809731 is 19 × 3 × 67 × 5449. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 4, 53, 35, 967, 316, 46, 6845, 37425, 16147, 918126, 883571, 2667306, 3800242, 21784818, 32107129, 504039149, 289796916, 7754878820, 852294362

Basic calculations (n = 20809731)

Multiplication

n×y
n×2 41619462
n×3 62429193
n×4 83238924
n×5 104048655

Division

n÷y
n÷2 10404865.5
n÷3 6936577
n÷3 5202432.75
n÷5 4161946.2

Exponentiation

ny
n2 433044904292361
n3 9.0115479692448E+21
n4 1.8752788913358E+29
n5 3.9024049278676E+36

Nth Root

y√n
2√n 4561.7684070983
3√n 275.05665389243
4√n 67.5408647198
5√n 29.083943564702

Divisors of 20809731

1, 3, 19, 57, 67, 201, 1273, 3819, 5449, 16347, 103531, 310593, 365083, 1095249, 6936577, 20809731

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 -20809730
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 20809731 can be divided by 16 positive divisors. The sum of these divisors (counting 20809731) is 1, the average is 0.0625.

Base conversion 20809731

Base System Value
2 Binary 1001111011000100000000011
3 Ternary 1110011020120210
4 Quaternary 1033120200003
5 Quinary 20311402411
6 Senary 2022005203
8 Octal 117304003
10 Decimal 20809731
12 Duodecimal 6b76803
16 Hexadecimal 13d8803
20 Vigesimal 6a146b
36 Base36 ce0w3

Cryptographic Hash Functions

md5 920957b9980458de78d2e34adb4ec414
sha1 a673d0314a3f2ac7f65e88e8c9ee50dafc82d281
sha256 0b1af117ec6535ac6f7ae03a93afa3c3edd35e4fef7c217ebcd0733398134764
sha512 4ac59d03f15a2bb0d066ffb294f649ce38b16acfc1312983f1392eec90c965f4545f6d579ad1dc9f40db3f3b6ca39013d1888daa049b7683bf008459a7d67c49
ripemd-160 177e1633fbe3ce83326d3d2349a897c2ed84c027

20809731 as geometric shapes

Circle

Radius = n
Diameter 41619462
Circumference 130751396.06556
Area 1.3604506899994E+15

Sphere

Radius = n
Volume 3.7747483863535E+22
Surface area 5.4418027599975E+15
Circumference 130751396.06556

Square

Length = n
Perimeter 83238924
Area 433044904292361
Diagonal 29429403.809536

Cube

Length = n
Surface area 2598269425754166
Volume 9.0115479692448E+21
Space diagonal 36043511.383841

Equilateral Triangle

Length = n
Perimeter 62429193
Area 1.8751394404829E+14
Altitude 18021755.691921

Triangular Pyramid

Length = n
Surface area 1.8751394404829E+14
Volume 1.0620211130068E+21
Height 9809801.2698453