21697930 is an even 8-digits composite number following 21697929
and preceding 21697931 . In scientific notation, it is written as 2.1697930 × 10^7.
The sum of its digits is 37. It has a total of 4 prime factors and 16 positive divisors.
There are 8589312 positive integers (up to 21697930) that are relatively prime to 21697930.
21697930 has 16 divisors, whose sum is 39460680
The reverse of 21697930 is 03979612
Previous prime number is 97
Is Prime? no
Number parity even
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty-one million six hundred ninety-seven thousand nine hundred thirty
Scientific notation
2.1697930 × 10^7
Engineering notation
2.1697930 × 10^6
Prime Factorization
2 × 5 × 97 × 22369
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21697930
Product of the distinct prime numbers
The prime factorization of 21697930 is 2 × 5 × 97 × 22369.
Since it has a total of 4 prime factors.
1 , 1 , 70 , 75 , 290 , 311 , 1666 , 1708 , 53969 , 48409 , 921224 , 493952 , 7442001 , 5060798 , 58843605 , 67624088 , 666913687 , 118558061 , 240850221 , 8697976326
n×2
43395860
n×3
65093790
n×4
86791720
n×5
108489650
n÷2
10848965
n÷3
7232643.3333333
n÷3
5424482.5
n÷5
4339586
n2
470800166284900
n3
1.0215389052038E+22
n4
2.2165279657389E+29
n5
4.8094068643645E+36
2 √n
4658.1036914178
3 √n
278.91557591735
4 √n
68.250301767961
5 √n
29.328081923593
1 , 2 , 5 , 10 , 97 , 194 , 485 , 970 , 22369 , 44738 , 111845 , 223690 , 2169793 , 4339586 , 10848965 , 21697930
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
-21697929
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 21697930 can be divided by 16 positive divisors.
The sum of these divisors (counting 21697930) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010010110001010110001010
3
Ternary
1111211100222001
4
Quaternary
1102301112022
5
Quinary
21023313210
6
Senary
2053021214
8
Octal
122612612
10
Decimal
21697930
12
Duodecimal
732480a
16
Hexadecimal
14b158a
20
Vigesimal
6fc4ga
36
Base36
cx28a
md5
b4980d14602c9f35fa5f3e185858319c
sha1
5a9cd34d27467979037271be1e2d5870b191c4f8
sha256
c6292119f8ae48c6c22dfeec05641f932714ba1ff9e1a93eb0a1960a5ab3b8ef
sha512
02d0ea5d494030ba3b1230830e5bc79e8b3e257d1cbb33d06df317b40eb0c27e5a75e53d80d1066525ced6296fcc7dcd4ec7c67b3cd902ed73a58a2f355ab494
ripemd-160
919aefa5a8692ed69d5ae4356dee1d05596ac988
Diameter
43395860
Circumference
136332114.97221
Area
1.4790623437095E+15
Volume
4.2790121599259E+22
Surface area
5.916249374838E+15
Circumference
136332114.97221
Perimeter
86791720
Area
470800166284900
Diagonal
30685506.881422
Surface area
2824800997709400
Volume
1.0215389052038E+22
Space diagonal
37581917.179073
Perimeter
65093790
Area
2.0386245205433E+14
Altitude
18790958.589536
Surface area
2.0386245205433E+14
Volume
1.2038951451925E+21
Height
10228502.293807