21497930 is an even 8-digits composite number following 21497929
and preceding 21497931 . In scientific notation, it is written as 2.1497930 × 10^7.
The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors.
There are 8146512 positive integers (up to 21497930) that are relatively prime to 21497930.
21497930 has 8 divisors, whose sum is 32586624
The reverse of 21497930 is 03979412
Previous prime number is 95
Is Prime? no
Number parity even
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty-one million four hundred ninety-seven thousand nine hundred thirty
Scientific notation
2.1497930 × 10^7
Engineering notation
2.1497930 × 10^6
Prime Factorization
2 × 95 × 113147
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21497930
Product of the distinct prime numbers
The prime factorization of 21497930 is 2 × 95 × 113147.
Since it has a total of 3 prime factors.
8 , 1 , 49 , 84 , 205 , 666 , 87 , 8427 , 72861 , 8847 , 860027 , 752149 , 1481464 , 9383963 , 86538312 , 41801686 , 992261712 , 273020216 , 9305652288 , 8085047306
n×2
42995860
n×3
64493790
n×4
85991720
n×5
107489650
n÷2
10748965
n÷3
7165976.6666667
n÷3
5374482.5
n÷5
4299586
n2
462160994284900
n3
9.9355047038672E+21
n4
2.1359278463841E+29
n5
4.5918027326616E+36
2 √n
4636.5860285344
3 √n
278.05596409672
4 √n
68.092481439101
5 √n
29.273815334829
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
-21497929
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 21497930 can be divided by 8 positive divisors.
The sum of these divisors (counting 21497930) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010000000100001001010
3
Ternary
1111110012121122
4
Quaternary
1102000201022
5
Quinary
21000413210
6
Senary
2044435242
8
Octal
122004112
10
Decimal
21497930
12
Duodecimal
7248b22
16
Hexadecimal
148084a
20
Vigesimal
6e74ga
36
Base36
csrwq
md5
47e6fe244daa3fe2846f2a7735469309
sha1
ddce5290c761c3a870fc190bdf67b59057b7e072
sha256
2c3fb721f3626a5a0a17422bebd9f8deaee7c3a3bba075bb4b22362aa8835c28
sha512
6b53c7785c9540778667b3a7b166959350bd7e647a20b83dc1423f65e21dcc46e6b6f2139048409f3778f9b3bc2a5928956b19515aa0acd60e7d5e8811b32752
ripemd-160
f86500239f4be672371a8b6a833eaff17f48eea0
Diameter
42995860
Circumference
135075477.91078
Area
1.4519215844212E+15
Volume
4.1617744783168E+22
Surface area
5.8076863376848E+15
Circumference
135075477.91078
Perimeter
85991720
Area
462160994284900
Diagonal
30402664.168947
Surface area
2772965965709400
Volume
9.9355047038672E+21
Space diagonal
37235507.017559
Perimeter
64493790
Area
2.001215808445E+14
Altitude
18617753.50878
Surface area
2.001215808445E+14
Volume
1.1709104584359E+21
Height
10134221.389649