21031690 is an even 8-digits composite number following 21031689
and preceding 21031691 . In scientific notation, it is written as 2.1031690 × 10^7.
The sum of its digits is 22. It has a total of 3 prime factors and 8 positive divisors.
There are 8412672 positive integers (up to 21031690) that are relatively prime to 21031690.
21031690 has 8 divisors, whose sum is 37857060
The reverse of 21031690 is 09613012
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty-one million thirty-one thousand six hundred ninety
Scientific notation
2.1031690 × 10^7
Engineering notation
2.1031690 × 10^6
Prime Factorization
2 × 5 × 2103169
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21031690
Product of the distinct prime numbers
The prime factorization of 21031690 is 2 × 5 × 2103169.
Since it has a total of 3 prime factors.
1 , 9 , 22 , 53 , 174 , 624 , 2151 , 1847 , 73217 , 78506 , 775113 , 26926 , 7661116 , 3658863 , 15066927 , 15977539 , 825578694 , 412252329 , 3660661378 , 2025731495
n×2
42063380
n×3
63095070
n×4
84126760
n×5
105158450
n÷2
10515845
n÷3
7010563.3333333
n÷3
5257922.5
n÷5
4206338
n2
442331984256100
n3
9.3029891699592E+21
n4
1.9565758429594E+29
n5
4.1150096590611E+36
2 √n
4586.0320539656
3 √n
276.03112615422
4 √n
67.720248478322
5 √n
29.145723086808
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
-21031689
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 21031690 can be divided by 8 positive divisors.
The sum of these divisors (counting 21031690) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000001110101100001010
3
Ternary
1110120112001111
4
Quaternary
1100032230022
5
Quinary
20341003230
6
Senary
2030440534
8
Octal
120165412
10
Decimal
21031690
12
Duodecimal
706314a
16
Hexadecimal
140eb0a
20
Vigesimal
6b8j4a
36
Base36
cis5m
md5
ef22bdbf9c02c00fff6e073a3940953f
sha1
86adaaf5c1267a1d7c72b8cc80340e54b435b4bc
sha256
13d3e3065889e3b22ab9a0ddbe6546e3a7402aaa96d946eb2cb8932f231b90f1
sha512
02a781d535a95dd03c059ad87d7b446bf4468d533490ec4eec30d3ea5e31205ee31caa5e85e53f092bc2e8a226e846bb8d2a275ab68cc7e617a7b21798999021
ripemd-160
f3d2532de8e8b04dc525dc3438a4a1641898c11e
Diameter
42063380
Circumference
132146005.59316
Area
1.3896269121868E+15
Volume
3.8968269910359E+22
Surface area
5.558507648747E+15
Circumference
132146005.59316
Perimeter
84126760
Area
442331984256100
Diagonal
29743301.237627
Surface area
2653991905536600
Volume
9.3029891699592E+21
Space diagonal
36427955.649038
Perimeter
63095070
Area
1.9153536763608E+14
Altitude
18213977.824519
Surface area
1.9153536763608E+14
Volume
1.0963677878972E+21
Height
9914433.7458755