21493085 is an odd 8-digits composite number following 21493084
and preceding 21493086 . In scientific notation, it is written as 2.1493085 × 10^7.
The sum of its digits is 32. It has a total of 4 prime factors and 16 positive divisors.
There are 16202880 positive integers (up to 21493085) that are relatively prime to 21493085.
21493085 has 16 divisors, whose sum is 27293760
The reverse of 21493085 is 58039412
Previous prime number is 233
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million four hundred ninety-three thousand eighty-five
Scientific notation
2.1493085 × 10^7
Engineering notation
2.1493085 × 10^6
Prime Factorization
5 × 19 × 233 × 971
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21493085
Product of the distinct prime numbers
The prime factorization of 21493085 is 5 × 19 × 233 × 971.
Since it has a total of 4 prime factors.
3 , 6 , 94 , 89 , 694 , 423 , 3449 , 4077 , 93212 , 91108 , 20304 , 875907 , 8961547 , 40080 , 41262199 , 94677071 , 339902976 , 652923318 , 9372639531 , 7101946928
n×2
42986170
n×3
64479255
n×4
85972340
n×5
107465425
n÷2
10746542.5
n÷3
7164361.6666667
n÷3
5373271.25
n÷5
4298617
n2
461952702817225
n3
9.9287887076304E+21
n4
2.1340029964014E+29
n5
4.586630779191E+36
2 √n
4636.0635241549
3 √n
278.03507398678
4 √n
68.088644605066
5 √n
29.272495724774
1 , 5 , 19 , 95 , 233 , 971 , 1165 , 4427 , 4855 , 18449 , 22135 , 92245 , 226243 , 1131215 , 4298617 , 21493085
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
-21493084
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 21493085 can be divided by 16 positive divisors.
The sum of these divisors (counting 21493085) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010001111111010101011101
3
Ternary
1111102221222012
4
Quaternary
1101333111131
5
Quinary
21000234320
6
Senary
2044401005
8
Octal
121772535
10
Decimal
21493085
12
Duodecimal
7246165
16
Hexadecimal
147f55d
20
Vigesimal
6e6ce5
36
Base36
cso65
md5
06ae0939db31f44bf3a1986278162eee
sha1
d2eda6a17ce7b1290b6d9ba915cf3fe8e934efcf
sha256
be396c64d5d8728d8606d59ce843e997e6c75861d01f08197cdd4c0434e08132
sha512
4871de4e89a0ceb2d320535b8822ff76b08e04ad345fba30fab08ff1df65d0964fcf628ff76e30defe056ce94075061964465ba2ee9761e155127a7d56d91032
ripemd-160
36bccbcdc33dc477efe2753450e1dbcc442e57fb
Diameter
42986170
Circumference
135045035.87796
Area
1.4512672174765E+15
Volume
4.1589612883916E+22
Surface area
5.8050688699062E+15
Circumference
135045035.87796
Perimeter
85972340
Area
461952702817225
Diagonal
30395812.304238
Surface area
2771716216903350
Volume
9.9287887076304E+21
Space diagonal
37227115.231397
Perimeter
64479255
Area
2.000313879933E+14
Altitude
18613557.615698
Surface area
2.000313879933E+14
Volume
1.170118970689E+21
Height
10131937.434746