21492287 is an odd 8-digits composite number following 21492286
and preceding 21492288 . In scientific notation, it is written as 2.1492287 × 10^7.
The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors.
There are 20252160 positive integers (up to 21492287) that are relatively prime to 21492287.
21492287 has 8 divisors, whose sum is 22744560
The reverse of 21492287 is 78229412
Previous prime number is 193
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty-one million four hundred ninety-two thousand two hundred eighty-seven
Scientific notation
2.1492287 × 10^7
Engineering notation
2.1492287 × 10^6
Prime Factorization
19 × 193 × 5861
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21492287
Product of the distinct prime numbers
The prime factorization of 21492287 is 19 × 193 × 5861.
Since it has a total of 3 prime factors.
4 , 10 , 44 , 58 , 830 , 27 , 5478 , 5926 , 99012 , 8372 , 75440 , 721829 , 5356934 , 767372 , 43313167 , 77710888 , 909504695 , 28534786 , 797256187 , 5582560368
n×2
42984574
n×3
64476861
n×4
85969148
n×5
107461435
n÷2
10746143.5
n÷3
7164095.6666667
n÷3
5373071.75
n÷5
4298457.4
n2
461918400490369
n3
9.92768283392E+21
n4
2.1336860871158E+29
n5
4.58577937522E+36
2 √n
4635.9774589616
3 √n
278.03163296168
4 √n
68.088012593713
5 √n
29.272278354411
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
-21492286
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 21492287 can be divided by 8 positive divisors.
The sum of these divisors (counting 21492287) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001111111001000111111
3
Ternary
1111102220212122
4
Quaternary
1101333020333
5
Quinary
21000223122
6
Senary
2044353155
8
Octal
121771077
10
Decimal
21492287
12
Duodecimal
72457bb
16
Hexadecimal
147f23f
20
Vigesimal
6e6ae7
36
Base36
csnjz
md5
da5aa357796cb50b74b2d3a28a8c90a6
sha1
e6f84fbaf4e6fe00dc307035e958496b16031e7b
sha256
59427c710c0d123a467171fc25fa1f5984e08ec0a15a189202d61e5d5d3bd331
sha512
0741837d31c536b0e99322e7c09d6f585897bc664babc0c6f207c365589c4c5eff4b02b4a5fb228e059b23b6c1c349ddf553657da301fe58e4f5616284ce0da8
ripemd-160
d97bb0e5ced6ef5b7ef71e5004e6bf2b2f952ef3
Diameter
42984574
Circumference
135040021.89609
Area
1.4511594535385E+15
Volume
4.158498061095E+22
Surface area
5.804637814154E+15
Circumference
135040021.89609
Perimeter
85969148
Area
461918400490369
Diagonal
30394683.761815
Surface area
2771510402942214
Volume
9.92768283392E+21
Space diagonal
37225733.054852
Perimeter
64476861
Area
2.0001653465007E+14
Altitude
18612866.527426
Surface area
2.0001653465007E+14
Volume
1.1699886422223E+21
Height
10131561.253938