21105613 is an odd 8-digits composite number following 21105612
and preceding 21105614 . In scientific notation, it is written as 2.1105613 × 10^7.
The sum of its digits is 19. It has a total of 2 prime factors and 4 positive divisors.
There are 21072640 positive integers (up to 21105613) that are relatively prime to 21105613.
21105613 has 4 divisors, whose sum is 21138588
The reverse of 21105613 is 31650112
Previous prime number is 653
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty-one million one hundred five thousand six hundred thirteen
Scientific notation
2.1105613 × 10^7
Engineering notation
2.1105613 × 10^6
Prime Factorization
653 × 32321
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21105613
Product of the distinct prime numbers
The prime factorization of 21105613 is 653 × 32321.
Since it has a total of 2 prime factors.
5 , 4 , 92 , 95 , 691 , 871 , 365 , 392 , 60093 , 68146 , 700138 , 990849 , 5474979 , 2241331 , 11449101 , 50959354 , 331815835 , 973646785 , 5871235325 , 7193449060
n×2
42211226
n×3
63316839
n×4
84422452
n×5
105528065
n÷2
10552806.5
n÷3
7035204.3333333
n÷3
5276403.25
n÷5
4221122.6
n2
445446900105769
n3
9.401429885682E+21
n4
1.9842294081384E+29
n5
4.1878377991388E+36
2 √n
4594.084566048
3 √n
276.35414962805
4 √n
67.77967664461
5 √n
29.166182845552
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
-21105612
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 21105613 can be divided by 4 positive divisors.
The sum of these divisors (counting 21105613) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000100000101111001101
3
Ternary
1110201021110101
4
Quaternary
1100200233031
5
Quinary
20400334423
6
Senary
2032211101
8
Octal
120405715
10
Decimal
21105613
12
Duodecimal
7099a91
16
Hexadecimal
1420bcd
20
Vigesimal
6bi40d
36
Base36
ckd71
md5
00bf421c029910c30118516135659628
sha1
54916f7924aebbd79272cc6ce62b30662b732921
sha256
20d8af603a4d0e28901bf763d06108d7959f7d227bfbf3f6db428966717b7612
sha512
e05a4af7cf1c2d29acb3c81a2203afa0f1aeb265050eee9cc35b205d93f67b5c57cba6ce367731fdb5ccd1d488b845566a8814f976bdd475733f74f79fe64947
ripemd-160
22302bc1070713507afb8bbc4d2bfd2c3b1a5c07
Diameter
42211226
Circumference
132610477.50062
Area
1.3994127089366E+15
Volume
3.9380617416131E+22
Surface area
5.5976508357465E+15
Circumference
132610477.50062
Perimeter
84422452
Area
445446900105769
Diagonal
29847844.146798
Surface area
2672681400634614
Volume
9.401429885682E+21
Space diagonal
36555994.040886
Perimeter
63316839
Area
1.9288416576431E+14
Altitude
18277997.020443
Surface area
1.9288416576431E+14
Volume
1.1079691375026E+21
Height
9949281.382266