21431311 is an odd 8-digits composite number following 21431310
and preceding 21431312 . In scientific notation, it is written as 2.1431311 × 10^7.
The sum of its digits is 16. It has a total of 2 prime factors and 4 positive divisors.
There are 19483000 positive integers (up to 21431311) that are relatively prime to 21431311.
21431311 has 4 divisors, whose sum is 23379624
The reverse of 21431311 is 11313412
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 16
Digital Root 7
Name
twenty-one million four hundred thirty-one thousand three hundred eleven
Scientific notation
2.1431311 × 10^7
Engineering notation
2.1431311 × 10^6
Prime Factorization
11 × 1948301
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21431311
Product of the distinct prime numbers
The prime factorization of 21431311 is 11 × 1948301.
Since it has a total of 2 prime factors.
4 , 1 , 20 , 51 , 676 , 780 , 8319 , 2025 , 87088 , 21070 , 328973 , 45585 , 7704550 , 450158 , 36742383 , 93866266 , 217632886 , 407989064 , 1137054598 , 9778284616
n×2
42862622
n×3
64293933
n×4
85725244
n×5
107156555
n÷2
10715655.5
n÷3
7143770.3333333
n÷3
5357827.75
n÷5
4286262.2
n2
459301091178721
n3
9.8434245276905E+21
n4
2.1095749235796E+29
n5
4.5210956265036E+36
2 √n
4629.3963969399
3 √n
277.76844839185
4 √n
68.039667819147
5 √n
29.255649733261
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
-21431310
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 21431311 can be divided by 4 positive divisors.
The sum of these divisors (counting 21431311) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001110000010000001111
3
Ternary
1111022211020021
4
Quaternary
1101300100033
5
Quinary
20441300221
6
Senary
2043203011
8
Octal
121602017
10
Decimal
21431311
12
Duodecimal
7216467
16
Hexadecimal
147040f
20
Vigesimal
6dii5b
36
Base36
crci7
md5
c47cfdc6d44526f13b212a9924cf06b4
sha1
a7925cf9556c29856657f103580c2add48935834
sha256
0c57abc2d4f47fa971e9ede3d514e51077f94e1b6890f66049ecd008b0010fbb
sha512
9bfecc4d834e056a952931e3c3dacccd4947d926cdeb16b09aa7d7c9505c333342fbf80c20345aadfc01e70fb125158eb36731b45b7911a11b437b7122c4ac8d
ripemd-160
9ed27a20df6134811f53f6c10b1ac46c1485411c
Diameter
42862622
Circumference
134656898.3888
Area
1.4429369338328E+15
Volume
4.1232040243144E+22
Surface area
5.7717477353314E+15
Circumference
134656898.3888
Perimeter
85725244
Area
459301091178721
Diagonal
30308450.675636
Surface area
2755806547072326
Volume
9.8434245276905E+21
Space diagonal
37120119.52481
Perimeter
64293933
Area
1.9888320647334E+14
Altitude
18560059.762405
Surface area
1.9888320647334E+14
Volume
1.1600587056047E+21
Height
10102816.891879