21609947 is an odd 8-digits composite number following 21609946
and preceding 21609948 . In scientific notation, it is written as 2.1609947 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 21599760 positive integers (up to 21609947) that are relatively prime to 21609947.
21609947 has 4 divisors, whose sum is 21620136
The reverse of 21609947 is 74990612
Previous prime number is 3011
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty-one million six hundred nine thousand nine hundred forty-seven
Scientific notation
2.1609947 × 10^7
Engineering notation
2.1609947 × 10^6
Prime Factorization
3011 × 7177
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21609947
Product of the distinct prime numbers
The prime factorization of 21609947 is 3011 × 7177.
Since it has a total of 2 prime factors.
3 , 4 , 44 , 59 , 742 , 503 , 7501 , 1816 , 62125 , 40539 , 256404 , 633156 , 9792545 , 1963730 , 52304447 , 78396821 , 847116748 , 600166090 , 5130934452 , 3455673257
n×2
43219894
n×3
64829841
n×4
86439788
n×5
108049735
n÷2
10804973.5
n÷3
7203315.6666667
n÷3
5402486.75
n÷5
4321989.4
n2
466989809342809
n3
1.0091625029438E+22
n4
2.1807948203003E+29
n5
4.7126860484565E+36
2 √n
4648.6500190916
3 √n
278.53807334892
4 √n
68.181009226115
5 √n
29.304258746842
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
-21609946
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 21609947 can be divided by 4 positive divisors.
The sum of these divisors (counting 21609947) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010011011110111011011
3
Ternary
1111122220021102
4
Quaternary
1102123313123
5
Quinary
21013004242
6
Senary
2051102015
8
Octal
122336733
10
Decimal
21609947
12
Duodecimal
72a190b
16
Hexadecimal
149bddb
20
Vigesimal
6f14h7
36
Base36
cv6cb
md5
6fbe730b44eaf5d16cf420fe89aeb15c
sha1
b028e37fd4525791c5a700c8063bb70086896ec1
sha256
9eee83547e41fe31212a2f4a4fd9dbb0a3ad75d4a49950fd3ec69d61bdb24316
sha512
5e09915456ab3bf5080bbcfdd8a5ab462dc2283b284bbba23ac25f7525d9735f4117e876eb0f646cb3f4602f9cd40e6cdff0c7972ca58f4e99ba589fb15e4ef5
ripemd-160
82404e4bfa515567f364387fc0d2ff6c56f65c00
Diameter
43219894
Circumference
135779301.47933
Area
1.4670917543327E+15
Volume
4.2271700073688E+22
Surface area
5.8683670173307E+15
Circumference
135779301.47933
Perimeter
86439788
Area
466989809342809
Diagonal
30561080.129564
Surface area
2801938856056854
Volume
1.0091625029438E+22
Space diagonal
37429526.152871
Perimeter
64829841
Area
2.0221251909966E+14
Altitude
18714763.076435
Surface area
2.0221251909966E+14
Volume
1.1893094152513E+21
Height
10187026.709855