20720145 (number)

20720145 is an odd 8-digits composite number following 20720144 and preceding 20720146. In scientific notation, it is written as 2.0720145 × 10^7. The sum of its digits is 21. It has a total of 4 prime factors and 16 positive divisors. There are 10987584 positive integers (up to 20720145) that are relatively prime to 20720145.

Interesting facts

Basic properties

Name

Name twenty million seven hundred twenty thousand one hundred forty-five

Notation

Scientific notation 2.0720145 × 10^7
Engineering notation 2.0720145 × 10^6

Prime Factorization of 20720145

Prime Factorization 5 × 3 × 179 × 7717

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20720145
Product of the distinct prime numbers

The prime factorization of 20720145 is 5 × 3 × 179 × 7717. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 1, 77, 10, 752, 46, 4420, 4817, 79178, 35190, 665201, 934750, 6080682, 5633488, 15640544, 1848134, 454392241, 816830231, 7059033549, 2305098014

Basic calculations (n = 20720145)

Multiplication

n×y
n×2 41440290
n×3 62160435
n×4 82880580
n×5 103600725

Division

n÷y
n÷2 10360072.5
n÷3 6906715
n÷3 5180036.25
n÷5 4144029

Exponentiation

ny
n2 429324408821025
n3 8.8956640028109E+21
n4 1.8431944800952E+29
n5 3.8191256890773E+36

Nth Root

y√n
2√n 4551.9385980042
3√n 274.6613793546
4√n 67.468056130321
5√n 29.058859026193

Divisors of 20720145

1, 3, 5, 15, 179, 537, 895, 2685, 7717, 23151, 38585, 115755, 1381343, 4144029, 6906715, 20720145

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 -20720144
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 20720145 can be divided by 16 positive divisors. The sum of these divisors (counting 20720145) is 1, the average is 0.0625.

Base conversion 20720145

Base System Value
2 Binary 1001111000010101000010001
3 Ternary 1102222200200210
4 Quaternary 1033002220101
5 Quinary 20301021040
6 Senary 2020034333
8 Octal 117025021
10 Decimal 20720145
12 Duodecimal 6b329a9
16 Hexadecimal 13c2a11
20 Vigesimal 69a075
36 Base36 cc3rl

Cryptographic Hash Functions

md5 32ecad89951341f6b33e36601eba67a9
sha1 5a7b1e0e82558a5cee0b14e8a68d926e35d94ca7
sha256 a18e4ae8964578b2bba8563323df57a7a3b9cbae205e20413a10fdd06de98e11
sha512 8e2579de223bfb14f59fe0e6ea624c5f93ba987b4898f005b8fa6f80579d2f044d2a3947c5798c6f815de0a831a3aebf852d3c84de48e7295631e741dd5ce7a1
ripemd-160 e0d2db64e123819fada213c389ced3a198fbcbde

20720145 as geometric shapes

Circle

Radius = n
Diameter 41440290
Circumference 130188510.62663
Area 1.3487624087589E+15

Sphere

Radius = n
Volume 3.7262070240045E+22
Surface area 5.3950496350357E+15
Circumference 130188510.62663

Square

Length = n
Perimeter 82880580
Area 429324408821025
Diagonal 29302710.073337

Cube

Length = n
Surface area 2575946452926150
Volume 8.8956640028109E+21
Space diagonal 35888343.880194

Equilateral Triangle

Length = n
Perimeter 62160435
Area 1.8590292225187E+14
Altitude 17944171.940097

Triangular Pyramid

Length = n
Surface area 1.8590292225187E+14
Volume 1.0483640565908E+21
Height 9767570.0244457