21497730 is an even 8-digits composite number following 21497729
and preceding 21497731 . In scientific notation, it is written as 2.1497730 × 10^7.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 5732720 positive integers (up to 21497730) that are relatively prime to 21497730.
21497730 has 8 divisors, whose sum is 34396416
The reverse of 21497730 is 03779412
Previous prime number is 15
Is Prime? no
Number parity even
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-one million four hundred ninety-seven thousand seven hundred thirty
Scientific notation
2.1497730 × 10^7
Engineering notation
2.1497730 × 10^6
Prime Factorization
2 × 15 × 716591
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21497730
Product of the distinct prime numbers
The prime factorization of 21497730 is 2 × 15 × 716591.
Since it has a total of 3 prime factors.
9 , 5 , 99 , 12 , 29 , 951 , 8578 , 1132 , 88992 , 10289 , 839480 , 876348 , 1629471 , 7377951 , 8226175 , 90983732 , 952527945 , 200947446 , 1956790775 , 972850799
n×2
42995460
n×3
64493190
n×4
85990920
n×5
107488650
n÷2
10748865
n÷3
7165910
n÷3
5374432.5
n÷5
4299546
n2
462152395152900
n3
9.9352274098504E+21
n4
2.1358483634556E+29
n5
4.5915891438511E+36
2 √n
4636.5644608913
3 √n
278.05510182199
4 √n
68.092323068693
5 √n
29.27376086647
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
-21497729
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 21497730 can be divided by 8 positive divisors.
The sum of these divisors (counting 21497730) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010000000011110000010
3
Ternary
1111110012100020
4
Quaternary
1102000132002
5
Quinary
21000411410
6
Senary
2044434310
8
Octal
122003602
10
Decimal
21497730
12
Duodecimal
7248996
16
Hexadecimal
1480782
20
Vigesimal
6e746a
36
Base36
csrr6
md5
1d969384e703ed96932a617219abe493
sha1
a8e358c78fc7acc6697eb94922b50235e035f892
sha256
7f652b8d1fd58e04a7ce339b9520d9db7177243531f7551c509e285da46cdc53
sha512
35c286d5844153ddd89b26ab20329c0db3a419d77333ae2ef5db3a234cf59a23b01c6291761e66073f107bd1b79609aa7d0209ef73efb31ac57323cb04a1994e
ripemd-160
72dd3f0d97590459fb0c0a10db746d29744812e2
Diameter
42995460
Circumference
135074221.27371
Area
1.4518945694513E+15
Volume
4.1616583256706E+22
Surface area
5.8075782778051E+15
Circumference
135074221.27371
Perimeter
85990920
Area
462152395152900
Diagonal
30402381.326235
Surface area
2772914370917400
Volume
9.9352274098504E+21
Space diagonal
37235160.607398
Perimeter
64493190
Area
2.0011785731112E+14
Altitude
18617580.303699
Surface area
2.0011785731112E+14
Volume
1.1708777790226E+21
Height
10134127.108745