21486972 (number)

21486972 is an even 8-digits composite number following 21486971 and preceding 21486973. In scientific notation, it is written as 2.1486972 × 10^7. The sum of its digits is 39. It has a total of 4 prime factors and 12 positive divisors. There are 6611328 positive integers (up to 21486972) that are relatively prime to 21486972.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred eighty-six thousand nine hundred seventy-two

Notation

Scientific notation 2.1486972 × 10^7
Engineering notation 2.1486972 × 10^6

Prime Factorization of 21486972

Prime Factorization 2 × 2 × 39 × 137737

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 10743486
Product of the distinct prime numbers

The prime factorization of 21486972 is 2 × 2 × 39 × 137737. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 4, 17, 38, 843, 973, 7637, 6387, 75801, 33555, 808232, 404540, 9869427, 2013572, 60598948, 70514289, 192450624, 210936072, 4442639912, 2301281509

Basic calculations (n = 21486972)

Multiplication

n×y
n×2 42973944
n×3 64460916
n×4 85947888
n×5 107434860

Division

n÷y
n÷2 10743486
n÷3 7162324
n÷3 5371743
n÷5 4297394.4

Exponentiation

ny
n2 461689965728784
n3 9.9203193662953E+21
n4 2.1315762445465E+29
n5 4.5801119082435E+36

Nth Root

y√n
2√n 4635.4041894963
3√n 278.00871218146
4√n 68.083802695621
5√n 29.270830415885

Divisors of 21486972

1, 2, 4, 39, 78, 156, 137737, 275474, 550948, 5371743, 10743486, 21486972

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 -21486971
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 21486972 can be divided by 12 positive divisors. The sum of these divisors (counting 21486972) is 1, the average is 0.083333333333333.

Base conversion 21486972

Base System Value
2 Binary 1010001111101110101111100
3 Ternary 1111102122120210
4 Quaternary 1101331311330
5 Quinary 21000040342
6 Senary 2044312420
8 Octal 121756574
10 Decimal 21486972
12 Duodecimal 7242710
16 Hexadecimal 147dd7c
20 Vigesimal 6e5h8c
36 Base36 csjgc

Cryptographic Hash Functions

md5 933fa6f66e106f5fa69de2723a819e6b
sha1 9077279336357744d2a4cd1e209bef1e0ee80c61
sha256 999bb8d490a1ae13412e9786dd12acc5aeaa8e078d35551e2cdbdfb5e25635a8
sha512 e837714960c5942fd4c225b1b7025a00ff1cd8bba64c75397165908585f93ffca70e7d1b3d1f8965bea3edfe70229b88ffce0ac9065eea4b2f9ee3a45006fc14
ripemd-160 dccbb271892ec5ca64926acf189961fc832f2fef

21486972 as geometric shapes

Circle

Radius = n
Diameter 42973944
Circumference 135006626.76618
Area 1.4504418045697E+15

Sphere

Radius = n
Volume 4.1554136589891E+22
Surface area 5.8017672182787E+15
Circumference 135006626.76618

Square

Length = n
Perimeter 85947888
Area 461689965728784
Diagonal 30387167.216731

Cube

Length = n
Surface area 2770139794372704
Volume 9.9203193662953E+21
Space diagonal 37216527.20481

Equilateral Triangle

Length = n
Perimeter 64460916
Area 1.9991761949675E+14
Altitude 18608263.602405

Triangular Pyramid

Length = n
Surface area 1.9991761949675E+14
Volume 1.1691208492406E+21
Height 10129055.73891