20121405 (number)

20121405 is an odd 8-digits composite number following 20121404 and preceding 20121406. In scientific notation, it is written as 2.0121405 × 10^7. The sum of its digits is 15. It has a total of 4 prime factors and 16 positive divisors. There are 10502720 positive integers (up to 20121405) that are relatively prime to 20121405.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0121405 × 10^7
Engineering notation 2.0121405 × 10^6

Prime Factorization of 20121405

Prime Factorization 3 × 5 × 47 × 28541

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20121405
Product of the distinct prime numbers

The prime factorization of 20121405 is 3 × 5 × 47 × 28541. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 9, 60, 5, 4, 370, 4205, 2396, 40812, 17494, 896919, 739035, 6404416, 623938, 28675507, 23147002, 126394704, 624321595, 9823670714, 3891175016

Basic calculations (n = 20121405)

Multiplication

n×y
n×2 40242810
n×3 60364215
n×4 80485620
n×5 100607025

Division

n÷y
n÷2 10060702.5
n÷3 6707135
n÷3 5030351.25
n÷5 4024281

Exponentiation

ny
n2 404870939174025
n3 8.1465721398509E+21
n4 1.6392047738766E+29
n5 3.2983103133104E+36

Nth Root

y√n
2√n 4485.6889103013
3√n 271.98989383587
4√n 66.975285817242
5√n 28.888943566219

Divisors of 20121405

1, 3, 5, 15, 47, 141, 235, 705, 28541, 85623, 142705, 428115, 1341427, 4024281, 6707135, 20121405

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 -20121404
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 20121405 can be divided by 16 positive divisors. The sum of these divisors (counting 20121405) is 1, the average is 0.0625.

Base conversion 20121405

Base System Value
2 Binary 1001100110000011100111101
3 Ternary 1101212021101020
4 Quaternary 1030300130331
5 Quinary 20122341110
6 Senary 1555134353
8 Octal 114603475
10 Decimal 20121405
12 Duodecimal 68a43b9
16 Hexadecimal 133073d
20 Vigesimal 65f3a5
36 Base36 bz9rx

Cryptographic Hash Functions

md5 0765a752902e2e21cbb72de5b60c90a6
sha1 7ef9eea7daec3dc51811d25bdc54a0bd430db7e6
sha256 dcf70aba6151cb8e19fa4b3cd5bffdf1f267eaa38fcf19f071909c1af80ad148
sha512 7815debca963fb43fc1ee88f0dba781f2aded5fafbf6f5048118045d9d9a34b0aac521e4d4827cd42e59c612c64667307c3bf23f69ed4be7a47621ae03110497
ripemd-160 158cde5e942c771916ce208c91f9d090292cd781

20121405 as geometric shapes

Circle

Radius = n
Diameter 40242810
Circumference 126426516.25581
Area 1.2719395681611E+15

Sphere

Radius = n
Volume 3.4124281581993E+22
Surface area 5.0877582726445E+15
Circumference 126426516.25581

Square

Length = n
Perimeter 80485620
Area 404870939174025
Diagonal 28455963.845002

Cube

Length = n
Surface area 2429225635044150
Volume 8.1465721398509E+21
Space diagonal 34851295.77967

Equilateral Triangle

Length = n
Perimeter 60364215
Area 1.7531425928938E+14
Altitude 17425647.889835

Triangular Pyramid

Length = n
Surface area 1.7531425928938E+14
Volume 9.60082733919E+20
Height 9485321.2816673