21491283 (number)

21491283 is an odd 8-digits composite number following 21491282 and preceding 21491284. In scientific notation, it is written as 2.1491283 × 10^7. The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors. There are 13025000 positive integers (up to 21491283) that are relatively prime to 21491283.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety-one thousand two hundred eighty-three

Notation

Scientific notation 2.1491283 × 10^7
Engineering notation 2.1491283 × 10^6

Prime Factorization of 21491283

Prime Factorization 3 × 11 × 651251

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21491283
Product of the distinct prime numbers

The prime factorization of 21491283 is 3 × 11 × 651251. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21491283)

Multiplication

n×y
n×2 42982566
n×3 64473849
n×4 85965132
n×5 107456415

Division

n÷y
n÷2 10745641.5
n÷3 7163761
n÷3 5372820.75
n÷5 4298256.6

Exponentiation

ny
n2 461875244986089
n3 9.9262916006904E+21
n4 2.1332874193096E+29
n5 4.5847083648722E+36

Nth Root

y√n
2√n 4635.8691741679
3√n 278.0273035309
4√n 68.087217406558
5√n 29.272004861723

Divisors of 21491283

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 -21491282
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 21491283 can be divided by 8 positive divisors. The sum of these divisors (counting 21491283) is 1, the average is 0.125.

Base conversion 21491283

Base System Value
2 Binary 1010001111110111001010011
3 Ternary 1111102212111110
4 Quaternary 1101332321103
5 Quinary 21000210113
6 Senary 2044344403
8 Octal 121767123
10 Decimal 21491283
12 Duodecimal 7245103
16 Hexadecimal 147ee53
20 Vigesimal 6e6843
36 Base36 csms3

Cryptographic Hash Functions

md5 4ced33fea3d829e908f27b96b0391e61
sha1 768d511cc75e32672538e3092c22ceb323d109a8
sha256 1539e3cfc8dde22ef60762902e40d79f4d30dae32376258f220a17858853aa4d
sha512 c1d270638f77c6298d98acc520088750211b2d8c275c95287cf3ec4621a3b6d88e91b5dfe9d906fcfd7d1acb02195c7bfae7d68a7b2c901f7d95254e66ae0fd2
ripemd-160 e1441635a8758c91fe6ef1e8ff4197248bcd4bd4

21491283 as geometric shapes

Circle

Radius = n
Diameter 42982566
Circumference 135033713.57804
Area 1.4510238765233E+15

Sphere

Radius = n
Volume 4.1579153026825E+22
Surface area 5.8040955060931E+15
Circumference 135033713.57804

Square

Length = n
Perimeter 85965132
Area 461875244986089
Diagonal 30393263.891398

Cube

Length = n
Surface area 2771251469916534
Volume 9.9262916006904E+21
Space diagonal 37223994.075841

Equilateral Triangle

Length = n
Perimeter 64473849
Area 1.9999784776856E+14
Altitude 18611997.037921

Triangular Pyramid

Length = n
Surface area 1.9999784776856E+14
Volume 1.1698246838139E+21
Height 10131087.963799