21250181 is an odd 8-digits composite number following 21250180
and preceding 21250182 . In scientific notation, it is written as 2.1250181 × 10^7.
The sum of its digits is 20. It has a total of 2 prime factors and 4 positive divisors.
There are 21097164 positive integers (up to 21250181) that are relatively prime to 21250181.
21250181 has 4 divisors, whose sum is 21403200
The reverse of 21250181 is 18105212
Previous prime number is 139
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty-one million two hundred fifty thousand one hundred eighty-one
Scientific notation
2.1250181 × 10^7
Engineering notation
2.1250181 × 10^6
Prime Factorization
139 × 152879
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21250181
Product of the distinct prime numbers
The prime factorization of 21250181 is 139 × 152879.
Since it has a total of 2 prime factors.
2 , 6 , 99 , 56 , 571 , 779 , 6414 , 7278 , 16241 , 65503 , 236423 , 549931 , 3831619 , 6411796 , 75462503 , 49955519 , 290821723 , 220438776 , 9683493435 , 2322892642
n×2
42500362
n×3
63750543
n×4
85000724
n×5
106250905
n÷2
10625090.5
n÷3
7083393.6666667
n÷3
5312545.25
n÷5
4250036.2
n2
451570192532761
n3
9.595948325526E+21
n4
2.0391563878407E+29
n5
4.3332442328922E+36
2 √n
4609.7918608111
3 √n
276.98369924972
4 √n
67.895448012448
5 √n
29.206029982043
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
-21250180
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 21250181 can be divided by 4 positive divisors.
The sum of these divisors (counting 21250181) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001000100000010000101
3
Ternary
1110222121202202
4
Quaternary
1101010002011
5
Quinary
20420001211
6
Senary
2035244245
8
Octal
121040205
10
Decimal
21250181
12
Duodecimal
7149685
16
Hexadecimal
1444085
20
Vigesimal
6cg591
36
Base36
cngqt
md5
30af924a59d1d8e116c9637865ee4a26
sha1
75e5f642e7a7c039edadca3834be4632c32de6a7
sha256
cee3445f95bc28e324a05aa1c87a1057029f27eca1e843e7270c46ebac364608
sha512
0a6affffd3f8659954f5910b7f90209816228962266bef978dd793886a6401ff52325cec77669e6ff726518a20052b68cfa50815bf416169382a6609cd95a0bb
ripemd-160
40ee6bb0c84f50b61ed180879b137e3ee01164dd
Diameter
42500362
Circumference
133518825.03411
Area
1.4186495994411E+15
Volume
4.01954143516E+22
Surface area
5.6745983977642E+15
Circumference
133518825.03411
Perimeter
85000724
Area
451570192532761
Diagonal
30052294.173083
Surface area
2709421155196566
Volume
9.595948325526E+21
Space diagonal
36806393.162035
Perimeter
63750543
Area
1.955356291626E+14
Altitude
18403196.581017
Surface area
1.955356291626E+14
Volume
1.1308933554825E+21
Height
10017431.391028