21131431 (number)

21131431 is an odd 8-digits composite number following 21131430 and preceding 21131432. In scientific notation, it is written as 2.1131431 × 10^7. The sum of its digits is 16. It has a total of 2 prime factors and 4 positive divisors. There are 21009112 positive integers (up to 21131431) that are relatively prime to 21131431.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1131431 × 10^7
Engineering notation 2.1131431 × 10^6

Prime Factorization of 21131431

Prime Factorization 173 × 122147

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 21131431
Product of the distinct prime numbers

The prime factorization of 21131431 is 173 × 122147. Since it has a total of 2 prime factors.

Most popular turbo-numbers

8, 4, 82, 73, 808, 16, 5118, 9250, 28445, 77701, 886075, 195225, 4183309, 4632643, 95995896, 70361074, 254800102, 759481233, 8449962230, 6977303917

Basic calculations (n = 21131431)

Multiplication

n×y
n×2 42262862
n×3 63394293
n×4 84525724
n×5 105657155

Division

n÷y
n÷2 10565715.5
n÷3 7043810.3333333
n÷3 5282857.75
n÷5 4226286.2

Exponentiation

ny
n2 446537376107761
n3 9.4359737521422E+21
n4 1.993956282612E+29
n5 4.2135149603033E+36

Nth Root

y√n
2√n 4596.8936250472
3√n 276.4667895545
4√n 67.800395463797
5√n 29.173315017661

Divisors of 21131431

1, 173, 122147, 21131431

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 -21131430
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 21131431 can be divided by 4 positive divisors. The sum of these divisors (counting 21131431) is 1, the average is 0.25.

Base conversion 21131431

Base System Value
2 Binary 1010000100111000010100111
3 Ternary 1110202120212121
4 Quaternary 1100213002213
5 Quinary 20402201211
6 Senary 2032530411
8 Octal 120470247
10 Decimal 21131431
12 Duodecimal 70b0a07
16 Hexadecimal 14270a7
20 Vigesimal 6c18bb
36 Base36 ckx47

Cryptographic Hash Functions

md5 dad6fc2d962f303e1943b762bd5c2401
sha1 526fa633097153f6834f0566938e925105737894
sha256 9834937e6b067abb92d8258a20974c83c3b0d1990ecc8bed7f8f77ac3de10484
sha512 d51d2911720c323d9acf16e06185c49057a12e651491ccf9d43258fdda7d4159fd2202ebf52f029952ed3d1e548c4455ad5c273203a60a06a050fff1419f1c28
ripemd-160 60b83c33b5a1580dff73f4fbc0a279571a30cff5

21131431 as geometric shapes

Circle

Radius = n
Diameter 42262862
Circumference 132772696.77888
Area 1.4028385403334E+15

Sphere

Radius = n
Volume 3.9525314425595E+22
Surface area 5.6113541613336E+15
Circumference 132772696.77888

Square

Length = n
Perimeter 84525724
Area 446537376107761
Diagonal 29884356.312551

Cube

Length = n
Surface area 2679224256646566
Volume 9.4359737521422E+21
Space diagonal 36600712.128636

Equilateral Triangle

Length = n
Perimeter 63394293
Area 1.9335635572428E+14
Altitude 18300356.064318

Triangular Pyramid

Length = n
Surface area 1.9335635572428E+14
Volume 1.1120401712063E+21
Height 9961452.1041838