21497798 is an even 8-digits composite number following 21497797
and preceding 21497799 . In scientific notation, it is written as 2.1497798 × 10^7.
The sum of its digits is 47. It has a total of 5 prime factors and 32 positive divisors.
There are 8975232 positive integers (up to 21497798) that are relatively prime to 21497798.
21497798 has 32 divisors, whose sum is 37822464
The reverse of 21497798 is 89779412
Previous prime number is 113
Is Prime? no
Number parity even
Number length 8
Sum of Digits 47
Digital Root 2
Name
twenty-one million four hundred ninety-seven thousand seven hundred ninety-eight
Scientific notation
2.1497798 × 10^7
Engineering notation
2.1497798 × 10^6
Prime Factorization
2 × 7 × 107 × 113 × 127
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
21497798
Product of the distinct prime numbers
The prime factorization of 21497798 is 2 × 7 × 107 × 113 × 127.
Since it has a total of 5 prime factors.
6 , 6 , 61 , 61 , 958 , 746 , 9223 , 5955 , 87374 , 40720 , 309300 , 574650 , 2464556 , 5492584 , 74289984 , 53634508 , 581774974 , 654724632 , 6029986007 , 7361904432
n×2
42995596
n×3
64493394
n×4
85991192
n×5
107488990
n÷2
10748899
n÷3
7165932.6666667
n÷3
5374449.5
n÷5
4299559.6
n2
462155318848804
n3
9.9353216892372E+21
n4
2.1358753874024E+29
n5
4.5916617631548E+36
2 √n
4636.5717939012
3 √n
278.055394996
4 √n
68.092376914756
5 √n
29.273779385757
1 , 2 , 7 , 14 , 107 , 113 , 127 , 214 , 226 , 254 , 749 , 791 , 889 , 1498 , 1582 , 1778 , 12091 , 13589 , 14351 , 24182 , 27178 , 28702 , 84637 , 95123 , 100457 , 169274 , 190246 , 200914 , 1535557 , 3071114 , 10748899 , 21497798
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21497797
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21497798 can be divided by 32 positive divisors.
The sum of these divisors (counting 21497798) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1010010000000011111000110
3
Ternary
1111110012102202
4
Quaternary
1102000133012
5
Quinary
21000412143
6
Senary
2044434502
8
Octal
122003706
10
Decimal
21497798
12
Duodecimal
7248a32
16
Hexadecimal
14807c6
20
Vigesimal
6e749i
36
Base36
csrt2
md5
41f3639e4721c4e79051895db6aec98f
sha1
7370f91ca9755bd4b0f45c48676f91ca7b86565e
sha256
c30b7e9ec4d08852ddb740bb135d8d74cc2eedf95f31ee6c6a895cdb617df2e8
sha512
8978c38872f320986dea6819cdf4738a65f93e55c63d9bf97162044a31f025727fe5134c8d81ff8c35a878d827a23ae0c29d013607ad8a04a4ae5cd9d8e14dc1
ripemd-160
985bc3c6327f89277116b45b6f22bc07078b74fa
Diameter
42995596
Circumference
135074648.53031
Area
1.4519037545129E+15
Volume
4.1616978173278E+22
Surface area
5.8076150180514E+15
Circumference
135074648.53031
Perimeter
85991192
Area
462155318848804
Diagonal
30402477.492757
Surface area
2772931913092824
Volume
9.9353216892372E+21
Space diagonal
37235278.386853
Perimeter
64493394
Area
2.0011912330858E+14
Altitude
18617639.193426
Surface area
2.0011912330858E+14
Volume
1.1708888899549E+21
Height
10134159.164252