21126987 (number)

21126987 is an odd 8-digits composite number following 21126986 and preceding 21126988. In scientific notation, it is written as 2.1126987 × 10^7. The sum of its digits is 36. It has a total of 4 prime factors and 14 positive divisors. There are 12070296 positive integers (up to 21126987) that are relatively prime to 21126987.

Interesting facts

Basic properties

Name

Name twenty-one million one hundred twenty-six thousand nine hundred eighty-seven

Notation

Scientific notation 2.1126987 × 10^7
Engineering notation 2.1126987 × 10^6

Prime Factorization of 21126987

Prime Factorization 63 × 9 × 7 × 5323

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21126987
Product of the distinct prime numbers

The prime factorization of 21126987 is 63 × 9 × 7 × 5323. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 10, 26, 23, 923, 63, 4892, 735, 76783, 65263, 912808, 401110, 8351532, 2884332, 97652310, 45803949, 7624916, 207740363, 6110609924, 5336515631

Basic calculations (n = 21126987)

Multiplication

n×y
n×2 42253974
n×3 63380961
n×4 84507948
n×5 105634935

Division

n÷y
n÷2 10563493.5
n÷3 7042329
n÷3 5281746.75
n÷5 4225397.4

Exponentiation

ny
n2 446349579698169
n3 9.4300217677387E+21
n4 1.9922794729673E+29
n5 4.2090862525747E+36

Nth Root

y√n
2√n 4596.4102297336
3√n 276.44740761186
4√n 67.796830528673
5√n 29.172087868214

Divisors of 21126987

1, 7, 9, 63, 441, 567, 3969, 5323, 37261, 47907, 335349, 2347443, 3018141, 21126987

14 divisors

τ Total Divisors 14
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21126986
Sum of the proper positive divisors of n
A Arithmetic Mean 0.071428571428571
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 14
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21126987 can be divided by 14 positive divisors. The sum of these divisors (counting 21126987) is 1, the average is 0.071428571428571.

Base conversion 21126987

Base System Value
2 Binary 1010000100101111101001011
3 Ternary 1110202100210000
4 Quaternary 1100211331023
5 Quinary 20402030422
6 Senary 2032454043
8 Octal 120457513
10 Decimal 21126987
12 Duodecimal 70aa323
16 Hexadecimal 1425f4b
20 Vigesimal 6c0h97
36 Base36 cktor

Cryptographic Hash Functions

md5 89c2e57c2340da5deca2665167e7302f
sha1 0f743f7172610e053afe7e18f5d7d393c2d12615
sha256 f069ac1438a569dc0b55a3e82a9744b857e2991c08fe779950aa84ec2828541f
sha512 851baac98e1e42eb3f5145f0e60c2c61e79ef2f384fef6c546f8cbe478ad4ee200d5277d883221ccaea0cd791800ddde6f730443d9100abb3d3f669cd6088a34
ripemd-160 d479cb5d1d59f78ff27c2171c756716d2e67ee24

21126987 as geometric shapes

Circle

Radius = n
Diameter 42253974
Circumference 132744774.30337
Area 1.4022485605127E+15

Sphere

Radius = n
Volume 3.9500382811626E+22
Surface area 5.6089942420506E+15
Circumference 132744774.30337

Square

Length = n
Perimeter 84507948
Area 446349579698169
Diagonal 29878071.54748

Cube

Length = n
Surface area 2678097478189014
Volume 9.4300217677387E+21
Space diagonal 36593014.894847

Equilateral Triangle

Length = n
Perimeter 63380961
Area 1.9327503749356E+14
Altitude 18296507.447424

Triangular Pyramid

Length = n
Surface area 1.9327503749356E+14
Volume 1.1113387231175E+21
Height 9959357.1824934