21497907 is an odd 8-digits composite number following 21497906
and preceding 21497908 . In scientific notation, it is written as 2.1497907 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 14243688 positive integers (up to 21497907) that are relatively prime to 21497907.
21497907 has 8 divisors, whose sum is 28840384
The reverse of 21497907 is 70979412
Previous prime number is 163
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty-one million four hundred ninety-seven thousand nine hundred seven
Scientific notation
2.1497907 × 10^7
Engineering notation
2.1497907 × 10^6
Prime Factorization
3 × 163 × 43963
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21497907
Product of the distinct prime numbers
The prime factorization of 21497907 is 3 × 163 × 43963.
Since it has a total of 3 prime factors.
7 , 9 , 5 , 96 , 345 , 106 , 9700 , 3045 , 17389 , 50027 , 1618 , 802322 , 3541451 , 853547 , 28406973 , 84529655 , 860912109 , 257775158 , 7892449072 , 3455119494
n×2
42995814
n×3
64493721
n×4
85991628
n×5
107489535
n÷2
10748953.5
n÷3
7165969
n÷3
5374476.75
n÷5
4299581.4
n2
462160005380649
n3
9.9354728147927E+21
n4
2.1359187057344E+29
n5
4.5917781695439E+36
2 √n
4636.5835482605
3 √n
278.0558649354
4 √n
68.092463226561
5 √n
29.273809070988
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
-21497906
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 21497907 can be divided by 8 positive divisors.
The sum of these divisors (counting 21497907) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010000000100000110011
3
Ternary
1111110012120210
4
Quaternary
1102000200303
5
Quinary
21000413112
6
Senary
2044435203
8
Octal
122004063
10
Decimal
21497907
12
Duodecimal
7248b03
16
Hexadecimal
1480833
20
Vigesimal
6e74f7
36
Base36
csrw3
md5
957c00f492d2012614f83d3adcb35766
sha1
4f02e059fd43368aeb47258b3473e781614539b9
sha256
8083e098a54ba3efe24a9c9c16ee66384b02770a9cb8d0aee06431ce0ea8afd1
sha512
664c4d7e8a52cbbc96bd60d18c2cf1934bfd422b5c440555eda4f77a66468454db1f193cbc6d3b742e9708f90561191bb6d917e6bc11007595e3213382964478
ripemd-160
f4590581479fabf4ad2815508551abb8e0c77a0f
Diameter
42995814
Circumference
135075333.39751
Area
1.4519184776869E+15
Volume
4.1617611206525E+22
Surface area
5.8076739107475E+15
Circumference
135075333.39751
Perimeter
85991628
Area
462160005380649
Diagonal
30402631.642035
Surface area
2772960032283894
Volume
9.9354728147927E+21
Space diagonal
37235467.180391
Perimeter
64493721
Area
2.001211526364E+14
Altitude
18617733.590195
Surface area
2.001211526364E+14
Volume
1.1709067002724E+21
Height
10134210.547345