21031615 is an odd 8-digits composite number following 21031614
and preceding 21031616 . In scientific notation, it is written as 2.1031615 × 10^7.
The sum of its digits is 19. It has a total of 4 prime factors and 12 positive divisors.
There are 15295280 positive integers (up to 21031615) that are relatively prime to 21031615.
21031615 has 12 divisors, whose sum is 27741672
The reverse of 21031615 is 51613012
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty-one million thirty-one thousand six hundred fifteen
Scientific notation
2.1031615 × 10^7
Engineering notation
2.1031615 × 10^6
Prime Factorization
5 × 11 × 11 × 34763
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1911965
Product of the distinct prime numbers
The prime factorization of 21031615 is 5 × 11 × 11 × 34763.
Since it has a total of 4 prime factors.
3 , 3 , 6 , 37 , 203 , 324 , 4201 , 1794 , 7081 , 59611 , 225200 , 166810 , 269368 , 7474671 , 26962069 , 19232250 , 82219111 , 770610952 , 2629855460 , 8298318469
n×2
42063230
n×3
63094845
n×4
84126460
n×5
105158075
n÷2
10515807.5
n÷3
7010538.3333333
n÷3
5257903.75
n÷5
4206323
n2
442328829508225
n3
9.3028896456176E+21
n4
1.9565479341412E+29
n5
4.1149362879902E+36
2 √n
4586.0238769549
3 √n
276.03079804049
4 √n
67.72018810484
5 √n
29.145702299773
1 , 5 , 11 , 55 , 121 , 605 , 34763 , 173815 , 382393 , 1911965 , 4206323 , 21031615
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21031614
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21031615 can be divided by 12 positive divisors.
The sum of these divisors (counting 21031615) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010000001110101010111111
3
Ternary
1110120111221201
4
Quaternary
1100032222333
5
Quinary
20341002430
6
Senary
2030440331
8
Octal
120165277
10
Decimal
21031615
12
Duodecimal
70630a7
16
Hexadecimal
140eabf
20
Vigesimal
6b8j0f
36
Base36
cis3j
md5
82bd8666b7d916b4fcc26c3406fc43b5
sha1
ba69577da488a671754e2de87bc958a18db59fb8
sha256
c734d0af3b6de92b784d19cde5a154f723858019286f9d5f3c67ff0b68b4ed96
sha512
af90e3b8e12b29731877c8210abfd2f0ddd50fc652f179e08998195ad5a27970b0c97511bfbb278585eda3f1eb3b662b7b7bb6436d529f2235328c6d965197b9
ripemd-160
8ac82e9155a1d369adf08b00e33bfaf29c87aba4
Diameter
42063230
Circumference
132145534.35426
Area
1.389617001254E+15
Volume
3.8967853023772E+22
Surface area
5.558468005016E+15
Circumference
132145534.35426
Perimeter
84126460
Area
442328829508225
Diagonal
29743195.171609
Surface area
2653972977049350
Volume
9.3028896456176E+21
Space diagonal
36427825.745228
Perimeter
63094845
Area
1.9153400159018E+14
Altitude
18213912.872614
Surface area
1.9153400159018E+14
Volume
1.0963560588411E+21
Height
9914398.3905365