21897429 is an odd 8-digits composite number following 21897428
and preceding 21897430 . In scientific notation, it is written as 2.1897429 × 10^7.
The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors.
There are 14598284 positive integers (up to 21897429) that are relatively prime to 21897429.
21897429 has 4 divisors, whose sum is 29196576
The reverse of 21897429 is 92479812
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
twenty-one million eight hundred ninety-seven thousand four hundred twenty-nine
Scientific notation
2.1897429 × 10^7
Engineering notation
2.1897429 × 10^6
Prime Factorization
3 × 7299143
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21897429
Product of the distinct prime numbers
The prime factorization of 21897429 is 3 × 7299143.
Since it has a total of 2 prime factors.
4 , 3 , 40 , 32 , 574 , 334 , 8394 , 8677 , 49270 , 19687 , 193999 , 848057 , 3088588 , 6816215 , 41293941 , 67554306 , 918325525 , 163030472 , 5932133356 , 2536458329
n×2
43794858
n×3
65692287
n×4
87589716
n×5
109487145
n÷2
10948714.5
n÷3
7299143
n÷3
5474357.25
n÷5
4379485.8
n2
479497396810041
n3
1.0499760202333E+22
n4
2.2991775354761E+29
n5
5.0346076841482E+36
2 √n
4679.4688801188
3 √n
279.76778791523
4 √n
68.406643537881
5 √n
29.381815369344
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
-21897428
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 21897429 can be divided by 4 positive divisors.
The sum of these divisors (counting 21897429) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010011100010000011010101
3
Ternary
1112012111121220
4
Quaternary
1103202003111
5
Quinary
21101204204
6
Senary
2101200553
8
Octal
123420325
10
Decimal
21897429
12
Duodecimal
7400159
16
Hexadecimal
14e20d5
20
Vigesimal
6gh3b9
36
Base36
d1c5x
md5
89a343b0cfb0307342f28b5f75da2d99
sha1
5cca0108eab74bc1b72ef09f96296f37990ce429
sha256
6de1b626d2f3125691b31670d99f27e7743f788de2c9115f87936073b213a751
sha512
c516d1bbe52012a855b870fdfde239386c59cbb02c67a862a2f84da6e685ce8c9657d9f0411fd7d5598b3f77ee713854347a90fb4f87f463347695b55a5268f1
ripemd-160
d0572f30279c03c5e9272349167fff0284558735
Diameter
43794858
Circumference
137585604.15781
Area
1.5063854992339E+15
Volume
4.3981292688137E+22
Surface area
6.0255419969354E+15
Circumference
137585604.15781
Perimeter
87589716
Area
479497396810041
Diagonal
30967641.072902
Surface area
2876984380860246
Volume
1.0499760202333E+22
Space diagonal
37927459.583132
Perimeter
65692287
Area
2.07628463343E+14
Altitude
18963729.791566
Surface area
2.07628463343E+14
Volume
1.2374086066503E+21
Height
10322547.024301