21002509 is an odd 8-digits composite number following 21002508
and preceding 21002510 . In scientific notation, it is written as 2.1002509 × 10^7.
The sum of its digits is 19. It has a total of 2 prime factors and 4 positive divisors.
There are 19093180 positive integers (up to 21002509) that are relatively prime to 21002509.
21002509 has 4 divisors, whose sum is 22911840
The reverse of 21002509 is 90520012
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 two thousand five hundred nine
Scientific notation
2.1002509 × 10^7
Engineering notation
2.1002509 × 10^6
Prime Factorization
11 × 1909319
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21002509
Product of the distinct prime numbers
The prime factorization of 21002509 is 11 × 1909319.
Since it has a total of 2 prime factors.
3 , 6 , 74 , 14 , 114 , 43 , 1847 , 1788 , 89670 , 12088 , 910770 , 350377 , 3108911 , 5964296 , 90648976 , 52280626 , 193573199 , 311411726 , 6462163948 , 4489079377
n×2
42005018
n×3
63007527
n×4
84010036
n×5
105012545
n÷2
10501254.5
n÷3
7000836.3333333
n÷3
5250627.25
n÷5
4200501.8
n2
441105384295081
n3
9.2643198036059E+21
n4
1.9457396005411E+29
n5
4.0865413472021E+36
2 √n
4582.8494411228
3 √n
275.90340472557
4 √n
67.696746163482
5 √n
29.13763078648
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21002508
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21002509 can be divided by 4 positive divisors.
The sum of these divisors (counting 21002509) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000000111100100001101
3
Ternary
1110112001000201
4
Quaternary
1100013210031
5
Quinary
20334040014
6
Senary
2030053501
8
Octal
120074415
10
Decimal
21002509
12
Duodecimal
704a291
16
Hexadecimal
140790d
20
Vigesimal
6b5659
36
Base36
ci5n1
md5
89d1108be29a5ad06e5e00c82b7b872a
sha1
e672b5d4487963b9533af1dd0e0b8fccb680fdd0
sha256
653e1f16171a6915ba20d22f25a184529b7108578bd8fe829fc2d0107a2f4b68
sha512
6cb8d8f97580366c97f3756e0e57942985b1370c312c0b6b170da33511f826d9a4ec1a55572a8412e7cfd1d811ced342d6a7de6894bae6c15663faad4da46195
ripemd-160
8608f296570fece8ee93956f75a9f8a8f479c978
Diameter
42005018
Circumference
131962655.96271
Area
1.3857734347603E+15
Volume
3.8806292047353E+22
Surface area
5.5430937390413E+15
Circumference
131962655.96271
Perimeter
84010036
Area
441105384295081
Diagonal
29702033.071663
Surface area
2646632305770486
Volume
9.2643198036059E+21
Space diagonal
36377412.674423
Perimeter
63007527
Area
1.9100423427282E+14
Altitude
18188706.337211
Surface area
1.9100423427282E+14
Volume
1.0918105593684E+21
Height
9900677.6905543