21609917 is an odd 8-digits composite number following 21609916
and preceding 21609918 . In scientific notation, it is written as 2.1609917 × 10^7.
The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors.
There are 18397584 positive integers (up to 21609917) that are relatively prime to 21609917.
21609917 has 8 divisors, whose sum is 24864000
The reverse of 21609917 is 71990612
Previous prime number is 149
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty-one million six hundred nine thousand nine hundred seventeen
Scientific notation
2.1609917 × 10^7
Engineering notation
2.1609917 × 10^6
Prime Factorization
7 × 149 × 20719
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21609917
Product of the distinct prime numbers
The prime factorization of 21609917 is 7 × 149 × 20719.
Since it has a total of 3 prime factors.
3 , 8 , 31 , 6 , 222 , 365 , 73 , 6383 , 97565 , 44022 , 645621 , 378792 , 2830210 , 5267115 , 6667123 , 43034532 , 381518908 , 291870177 , 3043580611 , 9046555274
n×2
43219834
n×3
64829751
n×4
86439668
n×5
108049585
n÷2
10804958.5
n÷3
7203305.6666667
n÷3
5402479.25
n÷5
4321983.4
n2
466988512746889
n3
1.0091583000414E+22
n4
2.1807827103755E+29
n5
4.712653336625E+36
2 √n
4648.6467923472
3 √n
278.5379444554
4 √n
68.180985563038
5 √n
29.304250610513
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
-21609916
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 21609917 can be divided by 8 positive divisors.
The sum of these divisors (counting 21609917) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010011011110110111101
3
Ternary
1111122220020022
4
Quaternary
1102123312331
5
Quinary
21013004132
6
Senary
2051101525
8
Octal
122336675
10
Decimal
21609917
12
Duodecimal
72a18a5
16
Hexadecimal
149bdbd
20
Vigesimal
6f14fh
36
Base36
cv6bh
md5
76b269f363a84b3f7a2a7dd472ebd6bc
sha1
cc0373b2bda494a4fb58de99910797899ec27340
sha256
8a78315260a3bbbe12a9f61ddce516428d555dd35656e91eb05d8ba998df5aac
sha512
88de07f57532b04a2d88c87224dc76e0a6ac76afee335dc58f7aa053f41994878e2291d00ff7a44a05b7dcbfc1e683a98161eb33d6a66caa7fc5185486575a74
ripemd-160
50e3940f5b2c2a5d32c6846d4451e50c6a4f5f64
Diameter
43219834
Circumference
135779112.98377
Area
1.4670876809564E+15
Volume
4.2271524022922E+22
Surface area
5.8683507238258E+15
Circumference
135779112.98377
Perimeter
86439668
Area
466988512746889
Diagonal
30561037.703157
Surface area
2801931076481334
Volume
1.0091583000414E+22
Space diagonal
37429474.191346
Perimeter
64829751
Area
2.0221195765716E+14
Altitude
18714737.095673
Surface area
2.0221195765716E+14
Volume
1.1893044620832E+21
Height
10187012.567719