21293921 is an odd 8-digits composite number following 21293920
and preceding 21293922 . In scientific notation, it is written as 2.1293921 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 19358100 positive integers (up to 21293921) that are relatively prime to 21293921.
21293921 has 4 divisors, whose sum is 23229744
The reverse of 21293921 is 12939212
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-one million two hundred ninety-three thousand nine hundred twenty-one
Scientific notation
2.1293921 × 10^7
Engineering notation
2.1293921 × 10^6
Prime Factorization
11 × 1935811
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21293921
Product of the distinct prime numbers
The prime factorization of 21293921 is 11 × 1935811.
Since it has a total of 2 prime factors.
1 , 2 , 24 , 11 , 838 , 687 , 1591 , 9927 , 48763 , 6249 , 724431 , 583729 , 14340 , 5877583 , 79751223 , 9216093 , 587742216 , 596310853 , 7505637903 , 6995830401
n×2
42587842
n×3
63881763
n×4
85175684
n×5
106469605
n÷2
10646960.5
n÷3
7097973.6666667
n÷3
5323480.25
n÷5
4258784.2
n2
453431071554241
n3
9.6553254166214E+21
n4
2.0559973665083E+29
n5
4.3780245498635E+36
2 √n
4614.5336709141
3 √n
277.173610794
4 √n
67.930358978251
5 √n
29.218043256305
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
-21293920
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 21293921 can be divided by 4 positive divisors.
The sum of these divisors (counting 21293921) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001001110101101100001
3
Ternary
1111001211202202
4
Quaternary
1101032231201
5
Quinary
20422401141
6
Senary
2040222545
8
Octal
121165541
10
Decimal
21293921
12
Duodecimal
716aa55
16
Hexadecimal
144eb61
20
Vigesimal
6d1eg1
36
Base36
coeht
md5
4fe05e9d8587a5e1f0862d90c000fd93
sha1
8eb59b7ca64e6485812cf646b783697f0f5ee966
sha256
dde1a265953a53c4d7cdab5193773d4d69e1505ae8112d767f7955c02d4943e7
sha512
927d984706985374035f81774245ccec60b8e346a423fd23d4d15915bc846c418a8989418c10c1e2d1df39a40c1bd5ade205e4d932b7b6f514acaa0f85de3fc2
ripemd-160
7d7c960af94b94cdd3ce317cd3e0ef10dcf2c51c
Diameter
42587842
Circumference
133793651.55944
Area
1.4244957233042E+15
Volume
4.0444132529169E+22
Surface area
5.6979828932166E+15
Circumference
133793651.55944
Perimeter
85175684
Area
453431071554241
Diagonal
30114151.874301
Surface area
2720586429325446
Volume
9.6553254166214E+21
Space diagonal
36882153.064358
Perimeter
63881763
Area
1.9634141341559E+14
Altitude
18441076.532179
Surface area
1.9634141341559E+14
Volume
1.137891012776E+21
Height
10038050.624767