20121285 (number)

20121285 is an odd 8-digits composite number following 20121284 and preceding 20121286. In scientific notation, it is written as 2.0121285 × 10^7. The sum of its digits is 21. It has a total of 4 prime factors and 16 positive divisors. There are 9566208 positive integers (up to 20121285) that are relatively prime to 20121285.

Interesting facts

Basic properties

Name

Name twenty million one hundred twenty-one thousand two hundred eighty-five

Notation

Scientific notation 2.0121285 × 10^7
Engineering notation 2.0121285 × 10^6

Prime Factorization of 20121285

Prime Factorization 5 × 57 × 17 × 4153

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20121285
Product of the distinct prime numbers

The prime factorization of 20121285 is 5 × 57 × 17 × 4153. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 2, 85, 17, 336, 717, 3968, 1055, 76946, 48412, 651344, 659798, 2162591, 8869680, 47121243, 77079449, 426217538, 527045215, 2107571860, 8625706489

Basic calculations (n = 20121285)

Multiplication

n×y
n×2 40242570
n×3 60363855
n×4 80485140
n×5 100606425

Division

n÷y
n÷2 10060642.5
n÷3 6707095
n÷3 5030321.25
n÷5 4024257

Exponentiation

ny
n2 404866110051225
n3 8.1464263871821E+21
n4 1.6391656706801E+29
n5 3.2982119621971E+36

Nth Root

y√n
2√n 4485.6755344095
3√n 271.98935313718
4√n 66.975185960246
5√n 28.888909108571

Divisors of 20121285

1, 5, 17, 57, 85, 285, 969, 4153, 4845, 20765, 70601, 236721, 353005, 1183605, 4024257, 20121285

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 -20121284
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 20121285 can be divided by 16 positive divisors. The sum of these divisors (counting 20121285) is 1, the average is 0.0625.

Base conversion 20121285

Base System Value
2 Binary 1001100110000011011000101
3 Ternary 1101212021012210
4 Quaternary 1030300123011
5 Quinary 20122340120
6 Senary 1555134033
8 Octal 114603305
10 Decimal 20121285
12 Duodecimal 68a4319
16 Hexadecimal 13306c5
20 Vigesimal 65f345
36 Base36 bz9ol

Cryptographic Hash Functions

md5 ca2540e29a592ec359bb6bea621b4b0a
sha1 929f450ceae1c1d05797b23110d2d3747e3efcfe
sha256 35cc272952c09d46191e154484d023b2e2dd0eac9b9c599600ac2f1b0f79d3d7
sha512 b5fa9bf10bb1611cea160cb611cd6cebd143eb139c52edd36fdf80b50dc4f04f9f4af12c5e15e26221f08e4244624e4072017307965ea4f7f2ba687cac7e38ce
ripemd-160 b13b930c40899de5cce535a9b154420f9b860693

20121285 as geometric shapes

Circle

Radius = n
Diameter 40242570
Circumference 126425762.27357
Area 1.2719243970244E+15

Sphere

Radius = n
Volume 3.4123671054642E+22
Surface area 5.0876975880976E+15
Circumference 126425762.27357

Square

Length = n
Perimeter 80485140
Area 404866110051225
Diagonal 28455794.139374

Cube

Length = n
Surface area 2429196660307350
Volume 8.1464263871821E+21
Space diagonal 34851087.933574

Equilateral Triangle

Length = n
Perimeter 60363855
Area 1.7531216821787E+14
Altitude 17425543.966787

Triangular Pyramid

Length = n
Surface area 1.7531216821787E+14
Volume 9.6006555680224E+20
Height 9485264.7131248