20990145 (number)

20990145 is an odd 8-digits composite number following 20990144 and preceding 20990146. In scientific notation, it is written as 2.0990145 × 10^7. The sum of its digits is 30. It has a total of 5 prime factors and 32 positive divisors. There are 9732800 positive integers (up to 20990145) that are relatively prime to 20990145.

Interesting facts

Basic properties

Name

Name twenty million nine hundred ninety thousand one hundred forty-five

Notation

Scientific notation 2.0990145 × 10^7
Engineering notation 2.0990145 × 10^6

Prime Factorization of 20990145

Prime Factorization 3 × 5 × 11 × 23 × 5531

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 20990145
Product of the distinct prime numbers

The prime factorization of 20990145 is 3 × 5 × 11 × 23 × 5531. Since it has a total of 5 prime factors.

Most popular turbo-numbers

8, 5, 23, 88, 44, 824, 1847, 6717, 93011, 8665, 181382, 83267, 9338594, 9975606, 49735523, 44668592, 834432372, 518150094, 5398977476, 1722962140

Basic calculations (n = 20990145)

Multiplication

n×y
n×2 41980290
n×3 62970435
n×4 83960580
n×5 104950725

Division

n÷y
n÷2 10495072.5
n÷3 6996715
n÷3 5247536.25
n÷5 4198029

Exponentiation

ny
n2 440586187121025
n3 9.2479679526674E+21
n4 1.9411618828184E+29
n5 4.0745269388832E+36

Nth Root

y√n
2√n 4581.50030012
3√n 275.84925342853
4√n 67.686780837325
5√n 29.134199362841

Divisors of 20990145

1, 3, 5, 11, 15, 23, 33, 55, 69, 115, 165, 253, 345, 759, 1265, 3795, 5531, 16593, 27655, 60841, 82965, 127213, 182523, 304205, 381639, 636065, 912615, 1399343, 1908195, 4198029, 6996715, 20990145

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20990144
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20990145 can be divided by 32 positive divisors. The sum of these divisors (counting 20990145) is 1, the average is 0.03125.

Base conversion 20990145

Base System Value
2 Binary 1010000000100100011000001
3 Ternary 1110111102001210
4 Quaternary 1100010203001
5 Quinary 20333141040
6 Senary 2025520333
8 Octal 120044301
10 Decimal 20990145
12 Duodecimal 70430a9
16 Hexadecimal 14048c1
20 Vigesimal 6b3f75
36 Base36 chw3l

Cryptographic Hash Functions

md5 c5139787ee43e98c33086b64556619c1
sha1 11e826e516f8da8ec48701c6771102362cfb9d3d
sha256 1486b45c8062643c0ebb395dab97a01662d9177cedbef918e8eed649ef1603fb
sha512 ceb8cfcc7c5c7ee10a6d17f36f380f0d3ece7a61d7709780cc54ef40bd7de42ce858d686c0bea0c809851c737e7446495b94faf9c089b3a5f310d9073343f6db
ripemd-160 73237972bcb77391f35f6ec8e83fcaf36c1249a2

20990145 as geometric shapes

Circle

Radius = n
Diameter 41980290
Circumference 131884970.65957
Area 1.3841423287326E+15

Sphere

Radius = n
Volume 3.8737797574312E+22
Surface area 5.5365693149302E+15
Circumference 131884970.65957

Square

Length = n
Perimeter 83960580
Area 440586187121025
Diagonal 29684547.735178

Cube

Length = n
Surface area 2643517122726150
Volume 9.2479679526674E+21
Space diagonal 36355997.598238

Equilateral Triangle

Length = n
Perimeter 62970435
Area 1.9077941530167E+14
Altitude 18177998.799119

Triangular Pyramid

Length = n
Surface area 1.9077941530167E+14
Volume 1.0898834752545E+21
Height 9894849.2450593