21005501 is an odd 8-digits composite number following 21005500
and preceding 21005502 . In scientific notation, it is written as 2.1005501 × 10^7.
The sum of its digits is 14. It has a total of 3 prime factors and 8 positive divisors.
There are 18972720 positive integers (up to 21005501) that are relatively prime to 21005501.
21005501 has 8 divisors, whose sum is 23062944
The reverse of 21005501 is 10550012
Previous prime number is 157
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 14
Digital Root 5
Name
twenty-one million five thousand five hundred one
Scientific notation
2.1005501 × 10^7
Engineering notation
2.1005501 × 10^6
Prime Factorization
11 × 157 × 12163
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21005501
Product of the distinct prime numbers
The prime factorization of 21005501 is 11 × 157 × 12163.
Since it has a total of 3 prime factors.
4 , 4 , 27 , 41 , 963 , 403 , 2940 , 8239 , 11123 , 19650 , 691541 , 946124 , 7882703 , 58195 , 14440035 , 95403026 , 639303047 , 443798681 , 1141880800 , 802660997
n×2
42011002
n×3
63016503
n×4
84022004
n×5
105027505
n÷2
10502750.5
n÷3
7001833.6666667
n÷3
5251375.25
n÷5
4201100.2
n2
441231072261001
n3
9.2682797296095E+21
n4
1.9468485912859E+29
n5
4.0894530031105E+36
2 √n
4583.1758639616
3 √n
275.91650576015
4 √n
67.699157040258
5 √n
29.138460923717
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21005500
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21005501 can be divided by 8 positive divisors.
The sum of these divisors (counting 21005501) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000001000010010111101
3
Ternary
1110112012010112
4
Quaternary
1100020102331
5
Quinary
20334134001
6
Senary
2030115405
8
Octal
120102275
10
Decimal
21005501
12
Duodecimal
704bb65
16
Hexadecimal
14084bd
20
Vigesimal
6b5df1
36
Base36
ci7y5
md5
7a7e4fb4f1ce5431949f69525ba57fa8
sha1
fc9b8f4c04275fc4d3354bbd4ea166ee0304dc19
sha256
32bb191494cf881a1ec14f32b0fe78ad6e546adc06af7915543416727deefc8d
sha512
d0109ea874e314f4f281c656c85eb60137bb4d720f880009cce43642231a7abde6b6664ecc43c80161f0f53b4b0d3eccbb72f06f60b107cc39d6d74baa685159
ripemd-160
e7b237e90cb726cbdb1f00664adf736f634635d2
Diameter
42011002
Circumference
131981455.25315
Area
1.3861682951507E+15
Volume
3.8822879346609E+22
Surface area
5.5446731806028E+15
Circumference
131981455.25315
Perimeter
84022004
Area
441231072261001
Diagonal
29706264.398642
Surface area
2647386433566006
Volume
9.2682797296095E+21
Space diagonal
36382594.970439
Perimeter
63016503
Area
1.9105865875854E+14
Altitude
18191297.485219
Surface area
1.9105865875854E+14
Volume
1.0922772411235E+21
Height
9902088.1328805