21491295 is an odd 8-digits composite number following 21491294
and preceding 21491296 . In scientific notation, it is written as 2.1491295 × 10^7.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 9824544 positive integers (up to 21491295) that are relatively prime to 21491295.
21491295 has 4 divisors, whose sum is 21696080
The reverse of 21491295 is 59219412
Previous prime number is 105
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-one million four hundred ninety-one thousand two hundred ninety-five
Scientific notation
2.1491295 × 10^7
Engineering notation
2.1491295 × 10^6
Prime Factorization
105 × 204679
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21491295
Product of the distinct prime numbers
The prime factorization of 21491295 is 105 × 204679.
Since it has a total of 2 prime factors.
5 , 10 , 15 , 7 , 688 , 16 , 4731 , 5975 , 6710 , 62095 , 819145 , 708979 , 2713780 , 2438310 , 47098917 , 35229234 , 686357610 , 44155260 , 2620960798 , 71483607
n×2
42982590
n×3
64473885
n×4
85965180
n×5
107456475
n÷2
10745647.5
n÷3
7163765
n÷3
5372823.75
n÷5
4298259
n2
461875760777025
n3
9.9263082282085E+21
n4
2.1332921839336E+29
n5
4.584721164611E+36
2 √n
4635.8704684234
3 √n
278.02735527788
4 √n
68.087226910951
5 √n
29.27200813062
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21491294
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21491295 can be divided by 4 positive divisors.
The sum of these divisors (counting 21491295) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001111110111001011111
3
Ternary
1111102212111220
4
Quaternary
1101332321133
5
Quinary
21000210140
6
Senary
2044344423
8
Octal
121767137
10
Decimal
21491295
12
Duodecimal
7245113
16
Hexadecimal
147ee5f
20
Vigesimal
6e684f
36
Base36
csmsf
md5
2df7ed421f3afb7ad518c59494666515
sha1
4eebfce3b03d094a7f123e90a2e3bd3454a9e69e
sha256
45683cc8b0fb0cfca8b9c4111480f4c0cfbc0a4fe0d82716de08854e33a21599
sha512
9ee761c54d916dc33afb80f7973857d5aa82eebebcfb1851bc8d034fffc8f4a685332ea0e88dce8c344e8ac491e1add8ddf1825d0ca726a114f9301ab409b2df
ripemd-160
65e0a0564887e2ff364a14cf54e1bbf8e90038a5
Diameter
42982590
Circumference
135033788.97626
Area
1.4510254969283E+15
Volume
4.157922267601E+22
Surface area
5.8041019877132E+15
Circumference
135033788.97626
Perimeter
85965180
Area
461875760777025
Diagonal
30393280.861961
Surface area
2771254564662150
Volume
9.9263082282085E+21
Space diagonal
37224014.860451
Perimeter
64473885
Area
1.9999807111258E+14
Altitude
18612007.430225
Surface area
1.9999807111258E+14
Volume
1.1698266433857E+21
Height
10131093.620654