21609902 is an even 8-digits composite number following 21609901
and preceding 21609903 . In scientific notation, it is written as 2.1609902 × 10^7.
The sum of its digits is 29. It has a total of 4 prime factors and 16 positive divisors.
There are 10544352 positive integers (up to 21609902) that are relatively prime to 21609902.
21609902 has 16 divisors, whose sum is 33203520
The reverse of 21609902 is 20990612
Previous prime number is 53
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-one million six hundred nine thousand nine hundred two
Scientific notation
2.1609902 × 10^7
Engineering notation
2.1609902 × 10^6
Prime Factorization
2 × 239 × 53 × 853
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21609902
Product of the distinct prime numbers
The prime factorization of 21609902 is 2 × 239 × 53 × 853.
Since it has a total of 4 prime factors.
8 , 5 , 16 , 98 , 923 , 297 , 6191 , 642 , 30882 , 90142 , 172479 , 1178 , 7845611 , 5228157 , 99928771 , 57502430 , 395524657 , 655820790 , 6526894076 , 4616973576
n×2
43219804
n×3
64829706
n×4
86439608
n×5
108049510
n÷2
10804951
n÷3
7203300.6666667
n÷3
5402475.5
n÷5
4321980.4
n2
466987864449604
n3
1.0091561985945E+22
n4
2.180776655432E+29
n5
4.7126369807774E+36
2 √n
4648.6451789742
3 √n
278.5378800086
4 √n
68.18097373149
5 √n
29.304246542345
1 , 2 , 53 , 106 , 239 , 478 , 853 , 1706 , 12667 , 25334 , 45209 , 90418 , 203867 , 407734 , 10804951 , 21609902
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21609901
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21609902 can be divided by 16 positive divisors.
The sum of these divisors (counting 21609902) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010010011011110110101110
3
Ternary
1111122220012202
4
Quaternary
1102123312232
5
Quinary
21013004102
6
Senary
2051101502
8
Octal
122336656
10
Decimal
21609902
12
Duodecimal
72a1892
16
Hexadecimal
149bdae
20
Vigesimal
6f14f2
36
Base36
cv6b2
md5
cac72f2b4f536077d58ee739ff4aa494
sha1
ef2ceb70b9f5f0c8811dbe6834bb6abdff514764
sha256
1f00630ca27bfa7d9ed5abb36684b5e4810cf83e9550471e0aec2b56e565d2c2
sha512
1b84404866a1937a9c0f289bf479f76ce834f538dd2555e698f8d578c6655c8e1ce3e5a629a0c2bb3d89e3cb38367e89adabf72037a23f97a56e6fee4494eab3
ripemd-160
e302ee850716886ca6dfd71c5f34aa2054eb6eda
Diameter
43219804
Circumference
135779018.73599
Area
1.4670856442705E+15
Volume
4.2271435997722E+22
Surface area
5.8683425770818E+15
Circumference
135779018.73599
Perimeter
86439608
Area
466987864449604
Diagonal
30561016.489953
Surface area
2801927186697624
Volume
1.0091561985945E+22
Space diagonal
37429448.210584
Perimeter
64829706
Area
2.022116769362E+14
Altitude
18714724.105292
Surface area
2.022116769362E+14
Volume
1.1893019855044E+21
Height
10187005.496651