21002842 is an even 8-digits composite number following 21002841
and preceding 21002843 . In scientific notation, it is written as 2.1002842 × 10^7.
The sum of its digits is 19. It has a total of 4 prime factors and 16 positive divisors.
There are 8962128 positive integers (up to 21002842) that are relatively prime to 21002842.
21002842 has 16 divisors, whose sum is 36161280
The reverse of 21002842 is 24820012
Previous prime number is 239
Is Prime? no
Number parity even
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty-one million two thousand eight hundred forty-two
Scientific notation
2.1002842 × 10^7
Engineering notation
2.1002842 × 10^6
Prime Factorization
2 × 7 × 239 × 6277
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21002842
Product of the distinct prime numbers
The prime factorization of 21002842 is 2 × 7 × 239 × 6277.
Since it has a total of 4 prime factors.
4 , 10 , 78 , 8 , 897 , 627 , 3820 , 5146 , 4918 , 9798 , 809543 , 653082 , 3538546 , 941697 , 51936184 , 78958563 , 277119526 , 964590719 , 9646778198 , 8935947951
n×2
42005684
n×3
63008526
n×4
84011368
n×5
105014210
n÷2
10501421
n÷3
7000947.3333333
n÷3
5250710.5
n÷5
4200568.4
n2
441119372076964
n3
9.2647604748717E+21
n4
1.9458630042158E+29
n5
4.0868653231189E+36
2 √n
4582.8857720873
3 √n
275.90486289022
4 √n
67.69701449907
5 √n
29.13772318277
1 , 2 , 7 , 14 , 239 , 478 , 1673 , 3346 , 6277 , 12554 , 43939 , 87878 , 1500203 , 3000406 , 10501421 , 21002842
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21002841
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21002842 can be divided by 16 positive divisors.
The sum of these divisors (counting 21002842) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000000111101001011010
3
Ternary
1110112001111001
4
Quaternary
1100013221122
5
Quinary
20334042332
6
Senary
2030055214
8
Octal
120075132
10
Decimal
21002842
12
Duodecimal
704a50a
16
Hexadecimal
1407a5a
20
Vigesimal
6b5722
36
Base36
ci5wa
md5
2cce19ed9517588006214d8fe9ed11ac
sha1
f85c07539bc47b5900d4fd4916bcec6219e3bb0b
sha256
8192a0799fceba0cf51e7fc319dc709641256ac9534c22007f815f88111221d4
sha512
48443bc1719fc0ed97bff42bad521f58f3803816e81b04416ab53b53632b5a04f2301546596ae4a90388ed65432f60700de0569921785968e3a5710556967b81
ripemd-160
7e76609e47c24d4490ba845a3233d5fc1f88ee12
Diameter
42005684
Circumference
131964748.26341
Area
1.3858173786731E+15
Volume
3.8808137926835E+22
Surface area
5.5432695146925E+15
Circumference
131964748.26341
Perimeter
84011368
Area
441119372076964
Diagonal
29702504.004779
Surface area
2646716232461784
Volume
9.2647604748717E+21
Space diagonal
36377989.447342
Perimeter
63008526
Area
1.9101029116005E+14
Altitude
18188994.723671
Surface area
1.9101029116005E+14
Volume
1.0918624929751E+21
Height
9900834.6682598