20405988 (number)

20405988 is an even 8-digits composite number following 20405987 and preceding 20405989. In scientific notation, it is written as 2.0405988 × 10^7. The sum of its digits is 36. It has a total of 5 prime factors and 18 positive divisors. There are 6801984 positive integers (up to 20405988) that are relatively prime to 20405988.

Interesting facts

Basic properties

Name

Name twenty million four hundred five thousand nine hundred eighty-eight

Notation

Scientific notation 2.0405988 × 10^7
Engineering notation 2.0405988 × 10^6

Prime Factorization of 20405988

Prime Factorization 2 × 2 × 3 × 3 × 566833

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 3400998
Product of the distinct prime numbers

The prime factorization of 20405988 is 2 × 2 × 3 × 3 × 566833. Since it has a total of 5 prime factors.

Most popular turbo-numbers

7, 4, 31, 56, 407, 541, 7297, 2655, 58550, 33563, 554415, 772127, 1410026, 3109559, 7370696, 71281349, 615159547, 172392801, 8223866473, 4846769026

Basic calculations (n = 20405988)

Multiplication

n×y
n×2 40811976
n×3 61217964
n×4 81623952
n×5 102029940

Division

n÷y
n÷2 10202994
n÷3 6801996
n÷3 5101497
n÷5 4081197.6

Exponentiation

ny
n2 416404346256144
n3 8.4971420928507E+21
n4 1.7339257958101E+29
n5 3.5382468982191E+36

Nth Root

y√n
2√n 4517.2987503596
3√n 273.26617359826
4√n 67.210852920935
5√n 28.970202131629

Divisors of 20405988

1, 2, 3, 4, 6, 9, 12, 18, 36, 566833, 1133666, 1700499, 2267332, 3400998, 5101497, 6801996, 10202994, 20405988

18 divisors

τ Total Divisors 18
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20405987
Sum of the proper positive divisors of n
A Arithmetic Mean 0.055555555555556
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 18
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20405988 can be divided by 18 positive divisors. The sum of these divisors (counting 20405988) is 1, the average is 0.055555555555556.

Base conversion 20405988

Base System Value
2 Binary 1001101110101111011100100
3 Ternary 1102101201202100
4 Quaternary 1031311323210
5 Quinary 20210442423
6 Senary 2005212100
8 Octal 115657344
10 Decimal 20405988
12 Duodecimal 6a01030
16 Hexadecimal 1375ee4
20 Vigesimal 67aej8
36 Base36 c5dd0

Cryptographic Hash Functions

md5 4cffa46b488ca21d2a17ef82a2990295
sha1 730a41ede5b89a4a7d2e6cd0031c1fc4c76b7602
sha256 bb5d6e63a91465b8daca3c5a6818c22d423b0e25a3564782ea9f27ac46263a28
sha512 ebfe1dac54ad2e3da63d04c492e6795ca2ddc707e21266b4c08c44d8c101c2d5ad59adcf836d1e78dcaf33c0389eabe709d8688c17ade98e730d52f2c9e5902b
ripemd-160 f1b2766718bd6c04f1e2b0763bc24415e5ab6130

20405988 as geometric shapes

Circle

Radius = n
Diameter 40811976
Circumference 128214603.98008
Area 1.3081728351212E+15

Sphere

Radius = n
Volume 3.5592745567211E+22
Surface area 5.2326913404846E+15
Circumference 128214603.98008

Square

Length = n
Perimeter 81623952
Area 416404346256144
Diagonal 28858424.983223

Cube

Length = n
Surface area 2498426077536864
Volume 8.4971420928507E+21
Space diagonal 35344207.994641

Equilateral Triangle

Length = n
Perimeter 61217964
Area 1.8030837105204E+14
Altitude 17672103.99732

Triangular Pyramid

Length = n
Surface area 1.8030837105204E+14
Volume 1.0013977990934E+21
Height 9619474.9944075