21490431 (number)

21490431 is an odd 8-digits composite number following 21490430 and preceding 21490432. In scientific notation, it is written as 2.1490431 × 10^7. The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors. There are 13484160 positive integers (up to 21490431) that are relatively prime to 21490431.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1490431 × 10^7
Engineering notation 2.1490431 × 10^6

Prime Factorization of 21490431

Prime Factorization 3 × 17 × 421381

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21490431
Product of the distinct prime numbers

The prime factorization of 21490431 is 3 × 17 × 421381. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21490431)

Multiplication

n×y
n×2 42980862
n×3 64471293
n×4 85961724
n×5 107452155

Division

n÷y
n÷2 10745215.5
n÷3 7163477
n÷3 5372607.75
n÷5 4298086.2

Exponentiation

ny
n2 461838624565761
n3 9.9251110943654E+21
n4 2.1329491514079E+29
n5 4.5837996564841E+36

Nth Root

y√n
2√n 4635.777281104
3√n 278.02362944604
4√n 68.086542584449
5√n 29.271772766286

Divisors of 21490431

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21490430
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21490431 can be divided by 8 positive divisors. The sum of these divisors (counting 21490431) is 1, the average is 0.125.

Base conversion 21490431

Base System Value
2 Binary 1010001111110101011111111
3 Ternary 1111102211022220
4 Quaternary 1101332223333
5 Quinary 21000143211
6 Senary 2044340423
8 Octal 121765377
10 Decimal 21490431
12 Duodecimal 7244713
16 Hexadecimal 147eaff
20 Vigesimal 6e661b
36 Base36 csm4f

Cryptographic Hash Functions

md5 6fced4d32659e2549b8d11d56d2dc3f9
sha1 a033eb0abe16d6d6a328671fe6cbb629c383f239
sha256 02581833b75e6b88ccc7854b470f51616134def2eba24637d5d0250fc945fb79
sha512 ddaebc1aaf70c688c19d52395c4f1777e610c84faeb7398ca53fe9920090780a7e5de37610895f99fb090364a40e92a8184e53d869a70b454ea67bea32783bff
ripemd-160 455faf0040bee16adefd202fcc8997f8923baccc

21490431 as geometric shapes

Circle

Radius = n
Diameter 42980862
Circumference 135028360.30416
Area 1.4509088300798E+15

Sphere

Radius = n
Volume 4.1574208133494E+22
Surface area 5.8036353203192E+15
Circumference 135028360.30416

Square

Length = n
Perimeter 85961724
Area 461838624565761
Diagonal 30392058.981443

Cube

Length = n
Surface area 2771031747394566
Volume 9.9251110943654E+21
Space diagonal 37222518.368553

Equilateral Triangle

Length = n
Perimeter 64471293
Area 1.9998199066141E+14
Altitude 18611259.184277

Triangular Pyramid

Length = n
Surface area 1.9998199066141E+14
Volume 1.1696855598093E+21
Height 10130686.327148