20121428 (number)

20121428 is an even 8-digits composite number following 20121427 and preceding 20121429. In scientific notation, it is written as 2.0121428 × 10^7. The sum of its digits is 20. It has a total of 4 prime factors and 12 positive divisors. There are 9922752 positive integers (up to 20121428) that are relatively prime to 20121428.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0121428 × 10^7
Engineering notation 2.0121428 × 10^6

Prime Factorization of 20121428

Prime Factorization 2 × 2 × 73 × 68909

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 10060714
Product of the distinct prime numbers

The prime factorization of 20121428 is 2 × 2 × 73 × 68909. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 9, 8, 82, 188, 565, 8814, 7950, 22004, 50242, 745133, 12667, 4825241, 8960232, 79642445, 91993553, 206962103, 62701407, 7742808746, 8017465163

Basic calculations (n = 20121428)

Multiplication

n×y
n×2 40242856
n×3 60364284
n×4 80485712
n×5 100607140

Division

n÷y
n÷2 10060714
n÷3 6707142.6666667
n÷3 5030357
n÷5 4024285.6

Exponentiation

ny
n2 404871864759184
n3 8.1466000759777E+21
n4 1.6392122687358E+29
n5 3.2983291642084E+36

Nth Root

y√n
2√n 4485.6914740093
3√n 271.98999746954
4√n 66.975304956449
5√n 28.888950170583

Divisors of 20121428

1, 2, 4, 73, 146, 292, 68909, 137818, 275636, 5030357, 10060714, 20121428

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20121427
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20121428 can be divided by 12 positive divisors. The sum of these divisors (counting 20121428) is 1, the average is 0.083333333333333.

Base conversion 20121428

Base System Value
2 Binary 1001100110000011101010100
3 Ternary 1101212021102002
4 Quaternary 1030300131110
5 Quinary 20122341203
6 Senary 1555134432
8 Octal 114603524
10 Decimal 20121428
12 Duodecimal 68a4418
16 Hexadecimal 1330754
20 Vigesimal 65f3b8
36 Base36 bz9sk

Cryptographic Hash Functions

md5 b91418c80d7f5e97f6286031f87904cb
sha1 d6fdccf5dc7e4988adaae0b328e967c599b86715
sha256 a3965c5b2a5c95057a77ea26c84440c20601330e261eafaa859b878449f3c1a3
sha512 9a3d22ddd77302df28d43fca0b9b7e85a09c63b319436a3f698df2a1257df1125cb4078fb8edf194a770901a7b93c61abe8b2cf203eabe4a16fd263fc4830571
ripemd-160 eb323d9b39ef8d5596a3d6e9d3224ea59601bf2b

20121428 as geometric shapes

Circle

Radius = n
Diameter 40242856
Circumference 126426660.76907
Area 1.2719424759727E+15

Sphere

Radius = n
Volume 3.4124398600567E+22
Surface area 5.0877699038906E+15
Circumference 126426660.76907

Square

Length = n
Perimeter 80485712
Area 404871864759184
Diagonal 28455996.371914

Cube

Length = n
Surface area 2429231188555104
Volume 8.1466000759777E+21
Space diagonal 34851335.616839

Equilateral Triangle

Length = n
Perimeter 60364284
Area 1.7531466007952E+14
Altitude 17425667.80842

Triangular Pyramid

Length = n
Surface area 1.7531466007952E+14
Volume 9.6008602622311E+20
Height 9485332.1239712