21031969 is an odd 8-digits composite number following 21031968
and preceding 21031970 . In scientific notation, it is written as 2.1031969 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 17998416 positive integers (up to 21031969) that are relatively prime to 21031969.
21031969 has 8 divisors, whose sum is 24075200
The reverse of 21031969 is 96913012
Previous prime number is 733
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million thirty-one thousand nine hundred sixty-nine
Scientific notation
2.1031969 × 10^7
Engineering notation
2.1031969 × 10^6
Prime Factorization
7 × 733 × 4099
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21031969
Product of the distinct prime numbers
The prime factorization of 21031969 is 7 × 733 × 4099.
Since it has a total of 3 prime factors.
1 , 3 , 56 , 6 , 683 , 32 , 9313 , 3820 , 44959 , 35340 , 98695 , 891947 , 6648600 , 4974332 , 10241159 , 46663786 , 411566980 , 256292542 , 3070762183 , 5958387963
n×2
42063938
n×3
63095907
n×4
84127876
n×5
105159845
n÷2
10515984.5
n÷3
7010656.3333333
n÷3
5257992.25
n÷5
4206393.8
n2
442343720016961
n3
9.3033594067414E+21
n4
1.9566796663844E+29
n5
4.1152826086328E+36
2 √n
4586.0624723176
3 √n
276.03234673047
4 √n
67.720473066257
5 √n
29.145800414056
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
-21031968
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 21031969 can be divided by 8 positive divisors.
The sum of these divisors (counting 21031969) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000001110110000100001
3
Ternary
1110120112102211
4
Quaternary
1100032300201
5
Quinary
20341010334
6
Senary
2030442121
8
Octal
120166041
10
Decimal
21031969
12
Duodecimal
7063341
16
Hexadecimal
140ec21
20
Vigesimal
6b8ji9
36
Base36
cisdd
md5
6cf70b36647336596ac1809037a9cb8d
sha1
05d8a1427f4a87be12032482ed88be7d790cd459
sha256
3254916ac9d8228c83fbf7f2d0b8d8984b2406a834fc18bae0f94adffcb16d4c
sha512
dfc702fe65c34ca89eb9815cfb23818afe176f5057d43e5c653b9dc74cdaa1928603d561c36ea57f1fb4f87b890d893f511e536efd64a408b7f0ae0947e7f0e5
ripemd-160
9e2fdc5a9ebff0039807ca71a7771fab38eada46
Diameter
42063938
Circumference
132147758.60186
Area
1.3896637811669E+15
Volume
3.8969820754566E+22
Surface area
5.5586551246675E+15
Circumference
132147758.60186
Perimeter
84127876
Area
442343720016961
Diagonal
29743695.803211
Surface area
2654062320101766
Volume
9.3033594067414E+21
Space diagonal
36428438.891214
Perimeter
63095907
Area
1.915404493696E+14
Altitude
18214219.445607
Surface area
1.915404493696E+14
Volume
1.0964114207204E+21
Height
9914565.2677368