21490953 is an odd 8-digits composite number following 21490952
and preceding 21490954 . In scientific notation, it is written as 2.1490953 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 12986000 positive integers (up to 21490953) that are relatively prime to 21490953.
21490953 has 16 divisors, whose sum is 31352832
The reverse of 21490953 is 35909412
Previous prime number is 1511
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-one million four hundred ninety thousand nine hundred fifty-three
Scientific notation
2.1490953 × 10^7
Engineering notation
2.1490953 × 10^6
Prime Factorization
3 × 11 × 1511 × 431
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21490953
Product of the distinct prime numbers
The prime factorization of 21490953 is 3 × 11 × 1511 × 431.
Since it has a total of 4 prime factors.
10 , 3 , 26 , 24 , 214 , 232 , 7554 , 4877 , 27807 , 37596 , 478375 , 499929 , 8469891 , 5600 , 82890093 , 75338524 , 399143713 , 311569185 , 1864413868 , 6869298705
n×2
42981906
n×3
64472859
n×4
85963812
n×5
107454765
n÷2
10745476.5
n÷3
7163651
n÷3
5372738.25
n÷5
4298190.6
n2
461861060848209
n3
9.925834351219E+21
n4
2.1331563952783E+29
n5
4.5843563832576E+36
2 √n
4635.8335820001
3 √n
278.02588048138
4 √n
68.086956034178
5 √n
29.271914966477
1 , 3 , 11 , 33 , 431 , 1293 , 1511 , 4533 , 4741 , 14223 , 16621 , 49863 , 651241 , 1953723 , 7163651 , 21490953
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21490952
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21490953 can be divided by 16 positive divisors.
The sum of these divisors (counting 21490953) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010001111110110100001001
3
Ternary
1111102212001020
4
Quaternary
1101332310021
5
Quinary
21000202303
6
Senary
2044343053
8
Octal
121766411
10
Decimal
21490953
12
Duodecimal
7244a89
16
Hexadecimal
147ed09
20
Vigesimal
6e677d
36
Base36
csmix
md5
34cb17a76f15d86452d187051cbc537f
sha1
63ebc45320c042177be428a53c267e88b49aad13
sha256
1aaa4ca27d7c79ee7421267f3e6148a8b9150883bfd71ed88c3414533c0b14df
sha512
f4ffb16466e2ea2578c51adf9c3883be65f1dc470ce0534d58fae1ea73f7a4baf0c0b1003b08660544cd622d3348b20ff7daa8e22b478153279a027e89d2b9cc
ripemd-160
a4cd3a4f847ae2f829180791a386f5430ad9a5ca
Diameter
42981906
Circumference
135031640.12689
Area
1.4509793157399E+15
Volume
4.1577237704718E+22
Surface area
5.8039172629597E+15
Circumference
135031640.12689
Perimeter
85963812
Area
461861060848209
Diagonal
30392797.200923
Surface area
2771166365089254
Volume
9.925834351219E+21
Space diagonal
37223422.499075
Perimeter
64472859
Area
1.9999170585669E+14
Altitude
18611711.249537
Surface area
1.9999170585669E+14
Volume
1.1697707964469E+21
Height
10130932.400308