21093921 is an odd 8-digits composite number following 21093920
and preceding 21093922 . In scientific notation, it is written as 2.1093921 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors.
There are 13353120 positive integers (up to 21093921) that are relatively prime to 21093921.
21093921 has 16 divisors, whose sum is 24635520
The reverse of 21093921 is 12939012
Previous prime number is 563
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-one million ninety-three thousand nine hundred twenty-one
Scientific notation
2.1093921 × 10^7
Engineering notation
2.1093921 × 10^6
Prime Factorization
9 × 23 × 563 × 181
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21093921
Product of the distinct prime numbers
The prime factorization of 21093921 is 9 × 23 × 563 × 181.
Since it has a total of 4 prime factors.
8 , 10 , 12 , 52 , 806 , 419 , 6382 , 7770 , 50987 , 13941 , 858640 , 956254 , 2818040 , 4828160 , 27152810 , 97506647 , 187229477 , 171085253 , 7394886815 , 5327888854
n×2
42187842
n×3
63281763
n×4
84375684
n×5
105469605
n÷2
10546960.5
n÷3
7031307
n÷3
5273480.25
n÷5
4218784.2
n2
444953503154241
n3
9.3858140442088E+21
n4
1.9798361996923E+29
n5
4.176250838925E+36
2 √n
4592.8118838028
3 √n
276.3031090264
4 √n
67.770287617825
5 √n
29.162950657037
1 , 9 , 23 , 181 , 207 , 563 , 1629 , 4163 , 5067 , 12949 , 37467 , 101903 , 116541 , 917127 , 2343769 , 21093921
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
-21093920
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 21093921 can be divided by 16 positive divisors.
The sum of these divisors (counting 21093921) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000011101111000100001
3
Ternary
1110200200102100
4
Quaternary
1100131320201
5
Quinary
20400001141
6
Senary
2032041013
8
Octal
120357041
10
Decimal
21093921
12
Duodecimal
7093169
16
Hexadecimal
141de21
20
Vigesimal
6bgeg1
36
Base36
ck469
md5
17fd35b7c778787339c2dbb2790957a1
sha1
5e6b005a22d67687e1b3010f302b357136e39839
sha256
ff1d7ec0d5159b237c75f9b8034991c83de2c105fdd25d2b82dfb1a4ef5266d4
sha512
925520502ace75a9777fed78c1fa105ed4758981b29ec2d85f4f36beb3759647af60adccb68a98f2aa1a4335ee4f5977ce7bb345cdfad8dfc51216a57f3cfe32
ripemd-160
0109c10e6e1caeb5b9f52ff9730e829e92396434
Diameter
42187842
Circumference
132537014.49801
Area
1.3978626566984E+15
Volume
3.9315205932328E+22
Surface area
5.5914506267936E+15
Circumference
132537014.49801
Perimeter
84375684
Area
444953503154241
Diagonal
29831309.161827
Surface area
2669721018925446
Volume
9.3858140442088E+21
Space diagonal
36535742.902844
Perimeter
63281763
Area
1.9267051861723E+14
Altitude
18267871.451422
Surface area
1.9267051861723E+14
Volume
1.106128792936E+21
Height
9943769.7206089