20690645 (number)

20690645 is an odd 8-digits composite number following 20690644 and preceding 20690646. In scientific notation, it is written as 2.0690645 × 10^7. The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors. There are 16552512 positive integers (up to 20690645) that are relatively prime to 20690645.

Interesting facts

Basic properties

Name

Name twenty million six hundred ninety thousand six hundred forty-five

Notation

Scientific notation 2.0690645 × 10^7
Engineering notation 2.0690645 × 10^6

Prime Factorization of 20690645

Prime Factorization 5 × 4138129

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 20690645
Product of the distinct prime numbers

The prime factorization of 20690645 is 5 × 4138129. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 10, 78, 5, 941, 914, 5133, 955, 79049, 57182, 671344, 549101, 8981121, 209922, 64598962, 59854578, 832794782, 222488242, 5337412915, 6733915497

Basic calculations (n = 20690645)

Multiplication

n×y
n×2 41381290
n×3 62071935
n×4 82762580
n×5 103453225

Division

n÷y
n÷2 10345322.5
n÷3 6896881.6666667
n÷3 5172661.25
n÷5 4138129

Exponentiation

ny
n2 428102790516025
n3 8.8577228620764E+21
n4 1.8327199924761E+29
n5 3.7920158748725E+36

Nth Root

y√n
2√n 4548.6970661938
3√n 274.53096908621
4√n 67.444029136713
5√n 29.050579885774

Divisors of 20690645

1, 5, 4138129, 20690645

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20690644
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20690645 can be divided by 4 positive divisors. The sum of these divisors (counting 20690645) is 1, the average is 0.25.

Base conversion 20690645

Base System Value
2 Binary 1001110111011011011010101
3 Ternary 1102221012020012
4 Quaternary 1032323123111
5 Quinary 20244100040
6 Senary 2015250005
8 Octal 116733325
10 Decimal 20690645
12 Duodecimal 6b19905
16 Hexadecimal 13bb6d5
20 Vigesimal 6966c5
36 Base36 cbh05

Cryptographic Hash Functions

md5 a2d108f3f98b2ace4a14457b35df0340
sha1 35f717d2550035da146a6b5a2d93141fd7591c51
sha256 9394ca5d1647638e972d788e328bff9221ef553436bd1a9389e0642c5549b59a
sha512 fb977087d1249b4e6e7013235d7be8c736cee41120ff4a124cf47fb1eea5a832f8f9fd6e190c84d41e8881d5ef7928c5b5ba84a52f3651405ffd7fa36695805a
ripemd-160 0ea027d6327c94475822845761a4eb76519c4bf1

20690645 as geometric shapes

Circle

Radius = n
Diameter 41381290
Circumference 130003156.66007
Area 1.3449245816664E+15

Sphere

Radius = n
Volume 3.7103142761378E+22
Surface area 5.3796983266657E+15
Circumference 130003156.66007

Square

Length = n
Perimeter 82762580
Area 428102790516025
Diagonal 29260990.773247

Cube

Length = n
Surface area 2568616743096150
Volume 8.8577228620764E+21
Space diagonal 35837248.381371

Equilateral Triangle

Length = n
Perimeter 62071935
Area 1.8537394600894E+14
Altitude 17918624.190685

Triangular Pyramid

Length = n
Surface area 1.8537394600894E+14
Volume 1.0438926502742E+21
Height 9753663.5910824