21609980 is an even 8-digits composite number following 21609979
and preceding 21609981 . In scientific notation, it is written as 2.1609980 × 10^7.
The sum of its digits is 35. It has a total of 6 prime factors and 36 positive divisors.
There are 7408800 positive integers (up to 21609980) that are relatively prime to 21609980.
21609980 has 36 divisors, whose sum is 52792488
The reverse of 21609980 is 08990612
Previous prime number is 7
Is Prime? no
Number parity even
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty-one million six hundred nine thousand nine hundred eighty
Scientific notation
2.1609980 × 10^7
Engineering notation
2.1609980 × 10^6
Prime Factorization
2 × 2 × 5 × 7 × 7 × 22051
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
1543570
Product of the distinct prime numbers
The prime factorization of 21609980 is 2 × 2 × 5 × 7 × 7 × 22051.
Since it has a total of 6 prime factors.
5 , 8 , 88 , 25 , 235 , 709 , 4637 , 2838 , 36715 , 16499 , 722669 , 643996 , 6804531 , 9763241 , 43943759 , 38497488 , 705664266 , 438546855 , 6727678968 , 7778713398
n×2
43219960
n×3
64829940
n×4
86439920
n×5
108049900
n÷2
10804990
n÷3
7203326.6666667
n÷3
5402495
n÷5
4321996
n2
466991235600400
n3
1.00916712615E+22
n4
2.1808081412759E+29
n5
4.7127220316809E+36
2 √n
4648.6535685078
3 √n
278.53821513164
4 √n
68.181035255471
5 √n
29.304267696795
1 , 2 , 4 , 5 , 7 , 10 , 14 , 20 , 28 , 35 , 49 , 70 , 98 , 140 , 196 , 245 , 490 , 980 , 22051 , 44102 , 88204 , 110255 , 154357 , 220510 , 308714 , 441020 , 617428 , 771785 , 1080499 , 1543570 , 2160998 , 3087140 , 4321996 , 5402495 , 10804990 , 21609980
36 divisors
τ
Total Divisors
36
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21609979
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.027777777777778
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
36
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21609980 can be divided by 36 positive divisors.
The sum of these divisors (counting 21609980) is 1, the average is 0.027777777777778.
Base
System
Value
2
Binary
1010010011011110111111100
3
Ternary
1111122220022122
4
Quaternary
1102123313330
5
Quinary
21013004410
6
Senary
2051102112
8
Octal
122336774
10
Decimal
21609980
12
Duodecimal
72a1938
16
Hexadecimal
149bdfc
20
Vigesimal
6f14j0
36
Base36
cv6d8
md5
27e32bf458f8f70c04cf541f4d53b284
sha1
b671c99f3f84bcf6ee4400e039cb750e76b89e29
sha256
b445b14737af3f6267bbbd63df12729dad14b21c28f8ab16beb75cd7b0d60f61
sha512
9335cea7826fd5cef95bf1c70f8008b98b9686683e5f4453fcdf6c5f59d32e9fecb8c695653f2969089bb1c2b219324a2bf87ffa8835e081c56eed6f7a2348d3
ripemd-160
6f9b2c98a8562f70f25e8365bc55daf873628e63
Diameter
43219960
Circumference
135779508.82444
Area
1.467096235053E+15
Volume
4.2271893730095E+22
Surface area
5.8683849402121E+15
Circumference
135779508.82444
Perimeter
86439920
Area
466991235600400
Diagonal
30561126.798611
Surface area
2801947413602400
Volume
1.00916712615E+22
Space diagonal
37429583.310547
Perimeter
64829940
Area
2.0221313668732E+14
Altitude
18714791.655274
Surface area
2.0221313668732E+14
Volume
1.189314863752E+21
Height
10187042.266204