21897142 is an even 8-digits composite number following 21897141
and preceding 21897143 . In scientific notation, it is written as 2.1897142 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 10762944 positive integers (up to 21897142) that are relatively prime to 21897142.
21897142 has 8 divisors, whose sum is 33402600
The reverse of 21897142 is 24179812
Previous prime number is 59
Is Prime? no
Number parity even
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-one million eight hundred ninety-seven thousand one hundred forty-two
Scientific notation
2.1897142 × 10^7
Engineering notation
2.1897142 × 10^6
Prime Factorization
2 × 59 × 185569
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21897142
Product of the distinct prime numbers
The prime factorization of 21897142 is 2 × 59 × 185569.
Since it has a total of 3 prime factors.
6 , 9 , 38 , 51 , 963 , 222 , 570 , 6178 , 53285 , 75932 , 417900 , 986269 , 7528894 , 2637598 , 7305324 , 48859710 , 486074406 , 243771890 , 7707178423 , 6600753132
n×2
43794284
n×3
65691426
n×4
87588568
n×5
109485710
n÷2
10948571
n÷3
7299047.3333333
n÷3
5474285.5
n÷5
4379428.4
n2
479484827768164
n3
1.0499347360485E+22
n4
2.2990570005987E+29
n5
5.0342777608203E+36
2 √n
4679.4382141449
3 √n
279.76656564531
4 √n
68.406419392809
5 √n
29.381738350026
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21897141
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21897142 can be divided by 8 positive divisors.
The sum of these divisors (counting 21897142) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010011100001111110110110
3
Ternary
1112012111020021
4
Quaternary
1103201332312
5
Quinary
21101202032
6
Senary
2101155354
8
Octal
123417666
10
Decimal
21897142
12
Duodecimal
73bbb5a
16
Hexadecimal
14e1fb6
20
Vigesimal
6gh2h2
36
Base36
d1bxy
md5
c75b5c129a1e7b2fbfb845ce0219ccbc
sha1
dce3dfb6d61d28ef1abe86f4910f1f32bb9af37d
sha256
397349d8a0e0f65b18147d647862bfdfa70c3dbced68642c001a0fdf9505044e
sha512
d3c4e3126748102294785a2cca0574ed01d2cddbc2a125add43ff198c97e46600766a2463a3ae2f532575558e1c5a279459c23e3813eed490682402ed74525d5
ripemd-160
fea3d102d5a08147b04e365d40a32346df7a3340
Diameter
43794284
Circumference
137583800.88363
Area
1.5063460124242E+15
Volume
4.397956338025E+22
Surface area
6.0253840496969E+15
Circumference
137583800.88363
Perimeter
87588568
Area
479484827768164
Diagonal
30967235.19361
Surface area
2876908966608984
Volume
1.0499347360485E+22
Space diagonal
37926962.48455
Perimeter
65691426
Area
2.0762302078822E+14
Altitude
18963481.242275
Surface area
2.0762302078822E+14
Volume
1.237359952772E+21
Height
10322411.731203