21131421 (number)

21131421 is an odd 8-digits composite number following 21131420 and preceding 21131422. In scientific notation, it is written as 2.1131421 × 10^7. The sum of its digits is 15. It has a total of 2 prime factors and 4 positive divisors. There are 14087612 positive integers (up to 21131421) that are relatively prime to 21131421.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1131421 × 10^7
Engineering notation 2.1131421 × 10^6

Prime Factorization of 21131421

Prime Factorization 3 × 7043807

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 21131421
Product of the distinct prime numbers

The prime factorization of 21131421 is 3 × 7043807. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21131421)

Multiplication

n×y
n×2 42262842
n×3 63394263
n×4 84525684
n×5 105657105

Division

n÷y
n÷2 10565710.5
n÷3 7043807
n÷3 5282855.25
n÷5 4226284.2

Exponentiation

ny
n2 446536953479241
n3 9.4359603560273E+21
n4 1.9939525082252E+29
n5 4.2135049905313E+36

Nth Root

y√n
2√n 4596.8925373561
3√n 276.46674594381
4√n 67.800387442522
5√n 29.173312256531

Divisors of 21131421

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21131420
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21131421 can be divided by 4 positive divisors. The sum of these divisors (counting 21131421) is 1, the average is 0.25.

Base conversion 21131421

Base System Value
2 Binary 1010000100111000010011101
3 Ternary 1110202120212020
4 Quaternary 1100213002131
5 Quinary 20402201141
6 Senary 2032530353
8 Octal 120470235
10 Decimal 21131421
12 Duodecimal 70b09b9
16 Hexadecimal 142709d
20 Vigesimal 6c18b1
36 Base36 ckx3x

Cryptographic Hash Functions

md5 693fa0482482f17edcf044311d561a11
sha1 c9abdc2811d7fdefa6f856ddde255c938602d6a5
sha256 73ba67a4796fdd3404efe774e6df89f918b4a91d67a0e50ee1bae6f0f3ed5a19
sha512 7e016d5a8b5c42e255356b8eb72121fd939b53f0292c6a21a5a3b93b9e7d0808bb909fc5c811cd2588573c4d5d54f7542062b9c6c419b6a96fc24b714acd10f0
ripemd-160 1549f9d30dacff0ffe45f59b2658001c5de867b8

21131421 as geometric shapes

Circle

Radius = n
Diameter 42262842
Circumference 132772633.94703
Area 1.4028372126068E+15

Sphere

Radius = n
Volume 3.952525831208E+22
Surface area 5.611348850427E+15
Circumference 132772633.94703

Square

Length = n
Perimeter 84525684
Area 446536953479241
Diagonal 29884342.170416

Cube

Length = n
Surface area 2679221720875446
Volume 9.4359603560273E+21
Space diagonal 36600694.808128

Equilateral Triangle

Length = n
Perimeter 63394263
Area 1.9335617272077E+14
Altitude 18300347.404064

Triangular Pyramid

Length = n
Surface area 1.9335617272077E+14
Volume 1.1120385924591E+21
Height 9961447.3901385