21031421 is an odd 8-digits prime number following 21031420
and preceding 21031422 . In scientific notation, it is written as 2.1031421 × 10^7.
The sum of its digits is 14. It has a total of 1 prime factors and 2 positive divisors.
There are 21031420 positive integers (up to 21031421) that are relatively prime to 21031421.
21031421 has 2 divisors, whose sum is 21031422
The reverse of 21031421 is 12413012
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 14
Digital Root 5
Name
twenty-one million thirty-one thousand four hundred twenty-one
Scientific notation
2.1031421 × 10^7
Engineering notation
2.1031421 × 10^6
Prime Factorization
21031421
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
21031421
Product of the distinct prime numbers
The prime factorization of 21031421 is 21031421.
Since it has a total of 1 prime factors.
3 , 5 , 93 , 23 , 665 , 966 , 8261 , 11 , 62210 , 88901 , 544690 , 51854 , 9585026 , 2578337 , 1071137 , 69187217 , 914168395 , 251195428 , 5742610075 , 9696791230
n×2
42062842
n×3
63094263
n×4
84125684
n×5
105157105
n÷2
10515710.5
n÷3
7010473.6666667
n÷3
5257855.25
n÷5
4206284.2
n2
442320669279241
n3
9.3026322126135E+21
n4
1.9564757447164E+29
n5
4.1147465063418E+36
2 √n
4586.0027256861
3 √n
276.02994931601
4 √n
67.720031938017
5 √n
29.145648530368
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
21031422
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10515711
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4586.0028347135
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999049042
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21031421 can be divided by 2 positive divisors.
The sum of these divisors (counting 21031421) is 21031422, the average is 10515711.
Base
System
Value
2
Binary
1010000001110100111111101
3
Ternary
1110120111200112
4
Quaternary
1100032213331
5
Quinary
20341001141
6
Senary
2030435405
8
Octal
120164775
10
Decimal
21031421
12
Duodecimal
7062b65
16
Hexadecimal
140e9fd
20
Vigesimal
6b8ib1
36
Base36
ciry5
md5
997e8e4c205210f3f403b164fddffeb9
sha1
7750c9b3543c76627fb3df632a2a057d44e32dba
sha256
f717e98a0421a934e7044f87d551c6a87364e9d3306181ce0c3d29231a0273b8
sha512
a55c80316d77c9a71d8cc5eea6bb7dfa19f68d8990c9534c8f6f8bbc978e2a53ef8c68ef18179ed6c0662b9d52f4eba735ad2dc088964f450bb89a316d3198d5
ripemd-160
576c2fe880e29eed32023dcffa2377d1e0a130a5
Diameter
42062842
Circumference
132144315.41631
Area
1.3895913651386E+15
Volume
3.8966774690926E+22
Surface area
5.5583654605543E+15
Circumference
132144315.41631
Perimeter
84125684
Area
442320669279241
Diagonal
29742920.814178
Surface area
2653924015675446
Volume
9.3026322126135E+21
Space diagonal
36427489.727371
Perimeter
63094263
Area
1.9153046810738E+14
Altitude
18213744.863686
Surface area
1.9153046810738E+14
Volume
1.0963257200706E+21
Height
9914306.9380594