21402641 is an odd 8-digits composite number following 21402640
and preceding 21402642 . In scientific notation, it is written as 2.1402641 × 10^7.
The sum of its digits is 20. It has a total of 2 prime factors and 4 positive divisors.
There are 19756272 positive integers (up to 21402641) that are relatively prime to 21402641.
21402641 has 4 divisors, whose sum is 23049012
The reverse of 21402641 is 14620412
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty-one million four hundred two thousand six hundred forty-one
Scientific notation
2.1402641 × 10^7
Engineering notation
2.1402641 × 10^6
Prime Factorization
13 × 1646357
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21402641
Product of the distinct prime numbers
The prime factorization of 21402641 is 13 × 1646357.
Since it has a total of 2 prime factors.
3 , 3 , 83 , 66 , 132 , 443 , 2254 , 308 , 54599 , 33636 , 83087 , 742382 , 9692722 , 6206483 , 43177644 , 34810745 , 360660208 , 610624313 , 5779868280 , 826869978
n×2
42805282
n×3
64207923
n×4
85610564
n×5
107013205
n÷2
10701320.5
n÷3
7134213.6666667
n÷3
5350660.25
n÷5
4280528.2
n2
458073041774881
n3
9.8039728648858E+21
n4
2.0983091160089E+29
n5
4.4909356716966E+36
2 √n
4626.2988446489
3 √n
277.64453039789
4 √n
68.016901169113
5 √n
29.24781812032
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
-21402640
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 21402641 can be divided by 4 positive divisors.
The sum of these divisors (counting 21402641) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001101001010000010001
3
Ternary
1111021100220102
4
Quaternary
1101221100101
5
Quinary
20434341031
6
Senary
2042422145
8
Octal
121512021
10
Decimal
21402641
12
Duodecimal
7201955
16
Hexadecimal
1469411
20
Vigesimal
6df6c1
36
Base36
cqqdt
md5
dd693a0f2c48322e13f77582cb4d8135
sha1
c0d4cec2af568e4a4d8789dd4a6ba6daacfcec44
sha256
c0d5b2ca515af46f9625827a6e631a7baf1ef6437745b044404c7d98be079b86
sha512
e021b7d26f3dc7a0f3588e93496945c54501f95a99a06437db5ec3965dd1cb28058fab4c6e5a2a8424524226975752fa9a095a3e781b7816aea678450f6243a0
ripemd-160
a7531f2b5b991da664f302cddaf24c3c6070dd26
Diameter
42805282
Circumference
134476759.46604
Area
1.4390789028475E+15
Volume
4.1066785504425E+22
Surface area
5.75631561139E+15
Circumference
134476759.46604
Perimeter
85610564
Area
458073041774881
Diagonal
30267905.172802
Surface area
2748438250649286
Volume
9.8039728648858E+21
Space diagonal
37070461.628157
Perimeter
64207923
Area
1.9835144548293E+14
Altitude
18535230.814078
Surface area
1.9835144548293E+14
Volume
1.1554092825549E+21
Height
10089301.724267