21158055 is an odd 8-digits composite number following 21158054
and preceding 21158056 . In scientific notation, it is written as 2.1158055 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 12 positive divisors.
There are 11284272 positive integers (up to 21158055) that are relatively prime to 21158055.
21158055 has 12 divisors, whose sum is 36674040
The reverse of 21158055 is 55085112
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-one million one hundred fifty-eight thousand fifty-five
Scientific notation
2.1158055 × 10^7
Engineering notation
2.1158055 × 10^6
Prime Factorization
3 × 5 × 3 × 470179
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
7052685
Product of the distinct prime numbers
The prime factorization of 21158055 is 3 × 5 × 3 × 470179.
Since it has a total of 4 prime factors.
10 , 3 , 91 , 3 , 808 , 184 , 2923 , 2480 , 25534 , 77072 , 181130 , 198857 , 1312941 , 3911839 , 81480151 , 54489046 , 161759549 , 627342249 , 7847931398 , 2749969417
n×2
42316110
n×3
63474165
n×4
84632220
n×5
105790275
n÷2
10579027.5
n÷3
7052685
n÷3
5289513.75
n÷5
4231611
n2
447663291383025
n3
9.4716845405631E+21
n4
2.0040242245188E+29
n5
4.2401254763702E+36
2 √n
4599.7885820981
3 √n
276.58284988629
4 √n
67.821741219893
5 √n
29.18066254842
1 , 3 , 5 , 9 , 15 , 45 , 470179 , 1410537 , 2350895 , 4231611 , 7052685 , 21158055
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21158054
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21158055 can be divided by 12 positive divisors.
The sum of these divisors (counting 21158055) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010000101101100010100111
3
Ternary
1110210221101200
4
Quaternary
1100231202213
5
Quinary
20404024210
6
Senary
2033253543
8
Octal
120554247
10
Decimal
21158055
12
Duodecimal
71042b3
16
Hexadecimal
142d8a7
20
Vigesimal
6c4f2f
36
Base36
clhnr
md5
2e7894203992537cd4af85550dc0b939
sha1
45e95d76ad480a62dc9bd7b377cdc99d13519e76
sha256
42a1737425dd50b2454ecaa70dab2b27efc5076c6966ad92dd52ed426a1a06ff
sha512
ea63ea7c49c4f871fff24981b982682a99b8108fb7e7da642ea84d4123e90bdf8ab950fee46198e605471f06071b289e68d8948d9c78f741d207b60166810d88
ripemd-160
51e99fcc5d965554bd20fe8fdca7a525696ec8f9
Diameter
42316110
Circumference
132939980.3045
Area
1.4063757074907E+15
Volume
3.9674899426337E+22
Surface area
5.625502829963E+15
Circumference
132939980.3045
Perimeter
84632220
Area
447663291383025
Diagonal
29922008.334436
Surface area
2685979748298150
Volume
9.4716845405631E+21
Space diagonal
36646826.249337
Perimeter
63474165
Area
1.9384389133973E+14
Altitude
18323413.124668
Surface area
1.9384389133973E+14
Volume
1.116248727982E+21
Height
9974002.7781453