21431189 is an odd 8-digits composite number following 21431188
and preceding 21431190 . In scientific notation, it is written as 2.1431189 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 19782624 positive integers (up to 21431189) that are relatively prime to 21431189.
21431189 has 4 divisors, whose sum is 23079756
The reverse of 21431189 is 98113412
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-one million four hundred thirty-one thousand one hundred eighty-nine
Scientific notation
2.1431189 × 10^7
Engineering notation
2.1431189 × 10^6
Prime Factorization
13 × 1648553
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21431189
Product of the distinct prime numbers
The prime factorization of 21431189 is 13 × 1648553.
Since it has a total of 2 prime factors.
10 , 7 , 54 , 65 , 324 , 659 , 8441 , 7135 , 20126 , 97141 , 582122 , 226547 , 1552628 , 1049474 , 6169978 , 71342873 , 545018942 , 541751248 , 6224557349 , 860287454
n×2
42862378
n×3
64293567
n×4
85724756
n×5
107155945
n÷2
10715594.5
n÷3
7143729.6666667
n÷3
5357797.25
n÷5
4286237.8
n2
459295861953721
n3
9.8432564244481E+21
n4
2.1095268880781E+29
n5
4.5209669438984E+36
2 √n
4629.3832202573
3 √n
277.76792131545
4 √n
68.039570988193
5 √n
29.25561642501
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
-21431188
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 21431189 can be divided by 4 positive divisors.
The sum of these divisors (counting 21431189) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001110000001110010101
3
Ternary
1111022211001202
4
Quaternary
1101300032111
5
Quinary
20441244224
6
Senary
2043202245
8
Octal
121601625
10
Decimal
21431189
12
Duodecimal
7216385
16
Hexadecimal
1470395
20
Vigesimal
6dihj9
36
Base36
crcet
md5
0a3614fe0d80aed648a5049f8ffa7dfb
sha1
5039983dbd447e4fabd63e319a1f2259dde1bbea
sha256
c3aae1703b3b84c16f5dc56110bb5126787c8ab2e75215649a1b6917ed5dc21a
sha512
178035beb8f1e11ae0bc3ad594e8a160d00b0b47686ab0cbad9d688321cdf8742857fd4cb3e812f0c2a587ec37502336392e95b87277c850978de02a630a90a7
ripemd-160
55a72452b81458a744a161bf5ec98adf791f56b4
Diameter
42862378
Circumference
134656131.84019
Area
1.442920505738E+15
Volume
4.1231336093929E+22
Surface area
5.771682022952E+15
Circumference
134656131.84019
Perimeter
85724756
Area
459295861953721
Diagonal
30308278.141581
Surface area
2755775171722326
Volume
9.8432564244481E+21
Space diagonal
37119908.214611
Perimeter
64293567
Area
1.988809421525E+14
Altitude
18559954.107306
Surface area
1.988809421525E+14
Volume
1.1600388944476E+21
Height
10102759.380527