20155421 (number)

20155421 is an odd 8-digits composite number following 20155420 and preceding 20155422. In scientific notation, it is written as 2.0155421 × 10^7. The sum of its digits is 20. It has a total of 4 prime factors and 16 positive divisors. There are 15916800 positive integers (up to 20155421) that are relatively prime to 20155421.

Interesting facts

Basic properties

Name

Name twenty million one hundred fifty-five thousand four hundred twenty-one

Notation

Scientific notation 2.0155421 × 10^7
Engineering notation 2.0155421 × 10^6

Prime Factorization of 20155421

Prime Factorization 13 × 17 × 11 × 8291

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20155421
Product of the distinct prime numbers

The prime factorization of 20155421 is 13 × 17 × 11 × 8291. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 9, 83, 48, 454, 234, 7026, 9888, 25517, 54242, 269414, 973604, 3011119, 2510605, 51193747, 42660049, 977881016, 663194047, 9019627141, 949358602

Basic calculations (n = 20155421)

Multiplication

n×y
n×2 40310842
n×3 60466263
n×4 80621684
n×5 100777105

Division

n÷y
n÷2 10077710.5
n÷3 6718473.6666667
n÷3 5038855.25
n÷5 4031084.2

Exponentiation

ny
n2 406240995687241
n3 8.1879582955355E+21
n4 1.6503174657696E+29
n5 3.326284330624E+36

Nth Root

y√n
2√n 4489.4789229932
3√n 272.14307729889
4√n 67.003573956866
5√n 28.898704539373

Divisors of 20155421

1, 11, 13, 17, 143, 187, 221, 2431, 8291, 91201, 107783, 140947, 1185613, 1550417, 1832311, 20155421

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 -20155420
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 20155421 can be divided by 16 positive divisors. The sum of these divisors (counting 20155421) is 1, the average is 0.0625.

Base conversion 20155421

Base System Value
2 Binary 1001100111000110000011101
3 Ternary 1101221000001002
4 Quaternary 1030320300131
5 Quinary 20124433141
6 Senary 2000000045
8 Octal 114706035
10 Decimal 20155421
12 Duodecimal 6900025
16 Hexadecimal 1338c1d
20 Vigesimal 65j8b1
36 Base36 c000t

Cryptographic Hash Functions

md5 519c2f4509d444fddb07cda743ec278d
sha1 97263690f41db30854a6adda2d38ffdcd04c443b
sha256 b1a019c24c9b82074919fe6f731175c7d8f5e58c44c3ea9e1ea5cc8bfa50c01c
sha512 0a8a91fedaad0b04b03cfa1df18a8d9a082c2e5b7da0fe80d778f61524d821a0171405553183f6a105b819bf504608ee129ffe7e290a074a6332b2ae105788be
ripemd-160 2becfa8f49914908b108d159bf0b4c430ec329d2

20155421 as geometric shapes

Circle

Radius = n
Diameter 40310842
Circumference 126640245.08722
Area 1.276243727638E+15

Sphere

Radius = n
Volume 3.4297639505539E+22
Surface area 5.1049749105522E+15
Circumference 126640245.08722

Square

Length = n
Perimeter 80621684
Area 406240995687241
Diagonal 28504069.733539

Cube

Length = n
Surface area 2437445974123446
Volume 8.1879582955355E+21
Space diagonal 34910213.219941

Equilateral Triangle

Length = n
Perimeter 60466263
Area 1.7590751116192E+14
Altitude 17455106.60997

Triangular Pyramid

Length = n
Surface area 1.7590751116192E+14
Volume 9.6496013914097E+20
Height 9501356.5778465