21609901 is an odd 8-digits composite number following 21609900
and preceding 21609902 . In scientific notation, it is written as 2.1609901 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 20801088 positive integers (up to 21609901) that are relatively prime to 21609901.
21609901 has 8 divisors, whose sum is 22423320
The reverse of 21609901 is 10990612
Previous prime number is 397
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million six hundred nine thousand nine hundred one
Scientific notation
2.1609901 × 10^7
Engineering notation
2.1609901 × 10^6
Prime Factorization
29 × 397 × 1877
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21609901
Product of the distinct prime numbers
The prime factorization of 21609901 is 29 × 397 × 1877.
Since it has a total of 3 prime factors.
8 , 5 , 43 , 14 , 438 , 759 , 7987 , 6808 , 96637 , 39147 , 146587 , 895152 , 2081775 , 9822475 , 37605246 , 74081072 , 441563038 , 118324683 , 3099775805 , 1518977922
n×2
43219802
n×3
64829703
n×4
86439604
n×5
108049505
n÷2
10804950.5
n÷3
7203300.3333333
n÷3
5402475.25
n÷5
4321980.2
n2
466987821229801
n3
1.0091560584982E+22
n4
2.1807762517696E+29
n5
4.7126358903891E+36
2 √n
4648.645071416
3 √n
278.53787571214
4 √n
68.18097294272
5 √n
29.304246271134
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
-21609900
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 21609901 can be divided by 8 positive divisors.
The sum of these divisors (counting 21609901) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010011011110110101101
3
Ternary
1111122220012201
4
Quaternary
1102123312231
5
Quinary
21013004101
6
Senary
2051101501
8
Octal
122336655
10
Decimal
21609901
12
Duodecimal
72a1891
16
Hexadecimal
149bdad
20
Vigesimal
6f14f1
36
Base36
cv6b1
md5
8d1a0e85e84c223e7c2f4d45b75a23ec
sha1
07e82cae03dfbd133b2e6264f7f1f92717a9b978
sha256
693f39b75bd8ba9cda783f8e79d34952b620a37ba17b1788f434d9e51918843f
sha512
d65bf0451b7bd0d8603a8c41d69fb4451bb891025aa8adc82e7e12827a48384f76ffc5b3a40dfe0023005285e09484cc0dc77165749ea227dc0497a8e7cd196d
ripemd-160
f4af03de4c9610db302a56a138ea443d8f656607
Diameter
43219802
Circumference
135779012.45281
Area
1.4670855084914E+15
Volume
4.227143012938E+22
Surface area
5.8683420339658E+15
Circumference
135779012.45281
Perimeter
86439604
Area
466987821229801
Diagonal
30561015.07574
Surface area
2801926927378806
Volume
1.0091560584982E+22
Space diagonal
37429446.478533
Perimeter
64829703
Area
2.0221165822148E+14
Altitude
18714723.239267
Surface area
2.0221165822148E+14
Volume
1.1893018203992E+21
Height
10187005.025247