21102561 is an odd 8-digits composite number following 21102560
and preceding 21102562 . In scientific notation, it is written as 2.1102561 × 10^7.
The sum of its digits is 18. It has a total of 3 prime factors and 8 positive divisors.
There are 14049504 positive integers (up to 21102561) that are relatively prime to 21102561.
21102561 has 8 divisors, whose sum is 23478760
The reverse of 21102561 is 16520112
Previous prime number is 1213
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty-one million one hundred two thousand five hundred sixty-one
Scientific notation
2.1102561 × 10^7
Engineering notation
2.1102561 × 10^6
Prime Factorization
9 × 1213 × 1933
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21102561
Product of the distinct prime numbers
The prime factorization of 21102561 is 9 × 1213 × 1933.
Since it has a total of 3 prime factors.
4 , 1 , 85 , 4 , 608 , 743 , 7259 , 1021 , 92902 , 53441 , 184422 , 124761 , 3341685 , 5769086 , 85447717 , 47781773 , 230565313 , 134229077 , 857560765 , 2690508624
n×2
42205122
n×3
63307683
n×4
84410244
n×5
105512805
n÷2
10551280.5
n÷3
7034187
n÷3
5275640.25
n÷5
4220512.2
n2
445318080758721
n3
9.3973519636138E+21
n4
1.9830819305063E+29
n5
4.1848107406507E+36
2 √n
4593.7523877545
3 √n
276.34082815565
4 √n
67.777226173358
5 √n
29.165339275272
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
-21102560
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 21102561 can be divided by 8 positive divisors.
The sum of these divisors (counting 21102561) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000011111111111100001
3
Ternary
1110201010021100
4
Quaternary
1100133333201
5
Quinary
20400240221
6
Senary
2032145013
8
Octal
120377741
10
Decimal
21102561
12
Duodecimal
7098169
16
Hexadecimal
141ffe1
20
Vigesimal
6bhg81
36
Base36
ckau9
md5
bf0fbea666f97acbeba40b963a3f2be1
sha1
2db77ecd41ecd262fa069e02c49eda3fd9bc6b16
sha256
3c8010d56f66576672778266b26b8eed71571ec0053d83f81c4b1ed96876e545
sha512
103ac0318d92a361ae668a75e1f96fe3c0a9fb56e89e315ad65f366a939104af00e8d39b88b600616f1cc660b596d4c13734b6c13e49bdc854fa9caf857f76c8
ripemd-160
349e4cf7e134ca21c89a3f30e430992f688886e4
Diameter
42205122
Circumference
132591301.21906
Area
1.3990080110223E+15
Volume
3.9363535856116E+22
Surface area
5.5960320440892E+15
Circumference
132591301.21906
Perimeter
84410244
Area
445318080758721
Diagonal
29843527.967006
Surface area
2671908484552326
Volume
9.3973519636138E+21
Space diagonal
36550707.821821
Perimeter
63307683
Area
1.9282838535079E+14
Altitude
18275353.910911
Surface area
1.9282838535079E+14
Volume
1.107488549778E+21
Height
9947842.6556685