21002564 is an even 8-digits composite number following 21002563
and preceding 21002565 . In scientific notation, it is written as 2.1002564 × 10^7.
The sum of its digits is 20. It has a total of 5 prime factors and 24 positive divisors.
There are 9494240 positive integers (up to 21002564) that are relatively prime to 21002564.
21002564 has 24 divisors, whose sum is 40315968
The reverse of 21002564 is 46520012
Previous prime number is 197
Is Prime? no
Number parity even
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty-one million two thousand five hundred sixty-four
Scientific notation
2.1002564 × 10^7
Engineering notation
2.1002564 × 10^6
Prime Factorization
2 × 2 × 11 × 197 × 2423
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
10501282
Product of the distinct prime numbers
The prime factorization of 21002564 is 2 × 2 × 11 × 197 × 2423.
Since it has a total of 5 prime factors.
4 , 5 , 20 , 22 , 650 , 341 , 6267 , 106 , 60930 , 20442 , 860192 , 681347 , 6118479 , 4553218 , 22297775 , 23722898 , 837431022 , 435777327 , 2325291308 , 1383236720
n×2
42005128
n×3
63007692
n×4
84010256
n×5
105012820
n÷2
10501282
n÷3
7000854.6666667
n÷3
5250641
n÷5
4200512.8
n2
441107694574096
n3
9.2643925861849E+21
n4
1.9457599821247E+29
n5
4.0865948553214E+36
2 √n
4582.8554417524
3 √n
275.90364556464
4 √n
67.696790483393
5 √n
29.137646047209
1 , 2 , 4 , 11 , 22 , 44 , 197 , 394 , 788 , 2167 , 2423 , 4334 , 4846 , 8668 , 9692 , 26653 , 53306 , 106612 , 477331 , 954662 , 1909324 , 5250641 , 10501282 , 21002564
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21002563
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21002564 can be divided by 24 positive divisors.
The sum of these divisors (counting 21002564) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1010000000111100101000100
3
Ternary
1110112001002202
4
Quaternary
1100013211010
5
Quinary
20334040224
6
Senary
2030054032
8
Octal
120074504
10
Decimal
21002564
12
Duodecimal
704a318
16
Hexadecimal
1407944
20
Vigesimal
6b5684
36
Base36
ci5ok
md5
2324e60bc8f3523752b36c7fd6f9a79c
sha1
3deb99c621ce610e7a128e8ab2e8b52b0a62e510
sha256
de037be0352cfdcaae1e756f7cca3dc2a086e6df6719240468e9b15850599b4d
sha512
ec546f1536c50f8d153072b80718801be9920252877a09ed86861e1da5635c55d656d301a9d50e333cb2f45c0dca023aef710d289c1183b191b02a50977a9b9e
ripemd-160
cf2e294b9102bc5974b6cdb00bb8a6aabae3c26a
Diameter
42005128
Circumference
131963001.5379
Area
1.3857806927159E+15
Volume
3.8806596918307E+22
Surface area
5.5431227708636E+15
Circumference
131963001.5379
Perimeter
84010256
Area
441107694574096
Diagonal
29702110.853409
Surface area
2646646167444576
Volume
9.2643925861849E+21
Space diagonal
36377507.937217
Perimeter
63007692
Area
1.9100523465298E+14
Altitude
18188753.968609
Surface area
1.9100523465298E+14
Volume
1.0918191368776E+21
Height
9900703.617803