20121894 (number)

20121894 is an even 8-digits composite number following 20121893 and preceding 20121895. In scientific notation, it is written as 2.0121894 × 10^7. The sum of its digits is 27. It has a total of 5 prime factors and 24 positive divisors. There are 6191280 positive integers (up to 20121894) that are relatively prime to 20121894.

Interesting facts

Basic properties

Name

Name twenty million one hundred twenty-one thousand eight hundred ninety-four

Notation

Scientific notation 2.0121894 × 10^7
Engineering notation 2.0121894 × 10^6

Prime Factorization of 20121894

Prime Factorization 2 × 3 × 3 × 13 × 85991

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 6707298
Product of the distinct prime numbers

The prime factorization of 20121894 is 2 × 3 × 3 × 13 × 85991. Since it has a total of 5 prime factors.

Most popular turbo-numbers

2, 8, 24, 30, 398, 947, 884, 5981, 2145, 60719, 139254, 359606, 3438769, 5750374, 34334983, 56957019, 423626017, 494434106, 8684160415, 9953482305

Basic calculations (n = 20121894)

Multiplication

n×y
n×2 40243788
n×3 60365682
n×4 80487576
n×5 100609470

Division

n÷y
n÷2 10060947
n÷3 6707298
n÷3 5030473.5
n÷5 4024378.8

Exponentiation

ny
n2 404890618147236
n3 8.1471660999532E+21
n4 1.6393641266365E+29
n5 3.2987111183582E+36

Nth Root

y√n
2√n 4485.7434166479
3√n 271.99209716082
4√n 66.975692729884
5√n 28.889083979437

Divisors of 20121894

1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 234, 85991, 171982, 257973, 515946, 773919, 1117883, 1547838, 2235766, 3353649, 6707298, 10060947, 20121894

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20121893
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20121894 can be divided by 24 positive divisors. The sum of these divisors (counting 20121894) is 1, the average is 0.041666666666667.

Base conversion 20121894

Base System Value
2 Binary 1001100110000100100100110
3 Ternary 1101212022001100
4 Quaternary 1030300210212
5 Quinary 20122400034
6 Senary 1555140530
8 Octal 114604446
10 Decimal 20121894
12 Duodecimal 68a4746
16 Hexadecimal 1330926
20 Vigesimal 65f4ee
36 Base36 bza5i

Cryptographic Hash Functions

md5 3b9e1d174b517bbace1e2a7663347b57
sha1 c5a7389f2039a69035d6c5a39cd994a979a21b7b
sha256 4ac56d670154292fb7be8eddbea2abbf7571b2c3dd2078e80e0ace825b0acd9b
sha512 677dc61c18629fdf39071c60fdab1ee9724a3e26b5e366540914da681c5159cc4df9babc5988ea787ab0ae3281a8de9c48d5370854019ed8b53f7a04c499495c
ripemd-160 efb6130374b4da6d5a5901e472a8c93b9eff275d

20121894 as geometric shapes

Circle

Radius = n
Diameter 40243788
Circumference 126429588.73343
Area 1.2720013914788E+15

Sphere

Radius = n
Volume 3.4126769556252E+22
Surface area 5.0880055659151E+15
Circumference 126429588.73343

Square

Length = n
Perimeter 80487576
Area 404890618147236
Diagonal 28456655.395434

Cube

Length = n
Surface area 2429343708883416
Volume 8.1471660999532E+21
Space diagonal 34852142.752515

Equilateral Triangle

Length = n
Perimeter 60365682
Area 1.7532278053475E+14
Altitude 17426071.376258

Triangular Pyramid

Length = n
Surface area 1.7532278053475E+14
Volume 9.6015273278834E+20
Height 9485551.7984779