20688545 (number)

20688545 is an odd 8-digits composite number following 20688544 and preceding 20688546. In scientific notation, it is written as 2.0688545 × 10^7. The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors. There are 16550832 positive integers (up to 20688545) that are relatively prime to 20688545.

Interesting facts

Basic properties

Name

Name twenty million six hundred eighty-eight thousand five hundred forty-five

Notation

Scientific notation 2.0688545 × 10^7
Engineering notation 2.0688545 × 10^6

Prime Factorization of 20688545

Prime Factorization 5 × 4137709

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 20688545
Product of the distinct prime numbers

The prime factorization of 20688545 is 5 × 4137709. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 3, 93, 95, 611, 279, 9528, 3760, 97288, 64454, 722268, 291195, 3192362, 941155, 66435712, 48669465, 535562101, 665344742, 273175389, 9533053900

Basic calculations (n = 20688545)

Multiplication

n×y
n×2 41377090
n×3 62065635
n×4 82754180
n×5 103442725

Division

n÷y
n÷2 10344272.5
n÷3 6896181.6666667
n÷3 5172136.25
n÷5 4137709

Exponentiation

ny
n2 428015894217025
n3 8.8550260882242E+21
n4 1.831976057024E+29
n5 3.7900919094663E+36

Nth Root

y√n
2√n 4548.4662250038
3√n 274.52168091853
4√n 67.442317761208
5√n 29.049990163273

Divisors of 20688545

1, 5, 4137709, 20688545

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 -20688544
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 20688545 can be divided by 4 positive divisors. The sum of these divisors (counting 20688545) is 1, the average is 0.25.

Base conversion 20688545

Base System Value
2 Binary 1001110111010111010100001
3 Ternary 1102221002100102
4 Quaternary 1032322322201
5 Quinary 20244013140
6 Senary 2015232145
8 Octal 116727241
10 Decimal 20688545
12 Duodecimal 6b18655
16 Hexadecimal 13baea1
20 Vigesimal 696175
36 Base36 cbfdt

Cryptographic Hash Functions

md5 fc8d9ce6b019d12ff978238c5e551c98
sha1 48bd6a5327485091f20a0587a6ac6f796eeb5209
sha256 bf78d232867dc143b6216ac8a504f6cc0a8eecc4bec2803cfebab1ec8cb60599
sha512 d03dbcf66a8e508ecdee1264753e8973237de6ea3cbfc628a274759b347a974dc6a9409f34b867e3fb3a96dd814551b58a0027a5bc637fc2cff56bb636514360
ripemd-160 51e857a9b19427fb71b72ca4d1a6683a4e4d5511

20688545 as geometric shapes

Circle

Radius = n
Diameter 41377090
Circumference 129989961.97092
Area 1.3446515888919E+15

Sphere

Radius = n
Volume 3.7091846541481E+22
Surface area 5.3786063555675E+15
Circumference 129989961.97092

Square

Length = n
Perimeter 82754180
Area 428015894217025
Diagonal 29258020.924766

Cube

Length = n
Surface area 2568095365302150
Volume 8.8550260882242E+21
Space diagonal 35833611.074675

Equilateral Triangle

Length = n
Perimeter 62065635
Area 1.8533631880773E+14
Altitude 17916805.537338

Triangular Pyramid

Length = n
Surface area 1.8533631880773E+14
Volume 1.0435748324278E+21
Height 9752673.6415887