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.
21491283 has 8 divisors, whose sum is 31260096
The reverse of 21491283 is 38219412
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million four hundred ninety-one thousand two hundred eighty-three
Scientific notation
2.1491283 × 10^7
Engineering notation
2.1491283 × 10^6
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.
4 , 9 , 50 , 26 , 84 , 853 , 6755 , 4449 , 45706 , 18969 , 678846 , 913324 , 8994075 , 6094025 , 39569492 , 91652688 , 996776092 , 850229858 , 9201356741 , 5169626742
n×2
42982566
n×3
64473849
n×4
85965132
n×5
107456415
n÷2
10745641.5
n÷3
7163761
n÷3
5372820.75
n÷5
4298256.6
n2
461875244986089
n3
9.9262916006904E+21
n4
2.1332874193096E+29
n5
4.5847083648722E+36
2 √n
4635.8691741679
3 √n
278.0273035309
4 √n
68.087217406558
5 √n
29.272004861723
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
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
md5
4ced33fea3d829e908f27b96b0391e61
sha1
768d511cc75e32672538e3092c22ceb323d109a8
sha256
1539e3cfc8dde22ef60762902e40d79f4d30dae32376258f220a17858853aa4d
sha512
c1d270638f77c6298d98acc520088750211b2d8c275c95287cf3ec4621a3b6d88e91b5dfe9d906fcfd7d1acb02195c7bfae7d68a7b2c901f7d95254e66ae0fd2
ripemd-160
e1441635a8758c91fe6ef1e8ff4197248bcd4bd4
Diameter
42982566
Circumference
135033713.57804
Area
1.4510238765233E+15
Volume
4.1579153026825E+22
Surface area
5.8040955060931E+15
Circumference
135033713.57804
Perimeter
85965132
Area
461875244986089
Diagonal
30393263.891398
Surface area
2771251469916534
Volume
9.9262916006904E+21
Space diagonal
37223994.075841
Perimeter
64473849
Area
1.9999784776856E+14
Altitude
18611997.037921
Surface area
1.9999784776856E+14
Volume
1.1698246838139E+21
Height
10131087.963799