21897013 is an odd 8-digits composite number following 21897012
and preceding 21897014 . In scientific notation, it is written as 2.1897013 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 21872268 positive integers (up to 21897013) that are relatively prime to 21897013.
21897013 has 4 divisors, whose sum is 21921760
The reverse of 21897013 is 31079812
Previous prime number is 919
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million eight hundred ninety-seven thousand thirteen
Scientific notation
2.1897013 × 10^7
Engineering notation
2.1897013 × 10^6
Prime Factorization
919 × 23827
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21897013
Product of the distinct prime numbers
The prime factorization of 21897013 is 919 × 23827.
Since it has a total of 2 prime factors.
10 , 1 , 3 , 8 , 188 , 561 , 1471 , 8091 , 3613 , 34878 , 325832 , 822230 , 9292543 , 1667931 , 58135683 , 93893792 , 99065068 , 912461267 , 4621104573 , 4999154364
n×2
43794026
n×3
65691039
n×4
87588052
n×5
109485065
n÷2
10948506.5
n÷3
7299004.3333333
n÷3
5474253.25
n÷5
4379402.6
n2
479479178322169
n3
1.049916180095E+22
n4
2.299002824445E+29
n5
5.0341294733909E+36
2 √n
4679.4244304188
3 √n
279.76601625919
4 √n
68.406318643958
5 √n
29.381703731324
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
-21897012
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 21897013 can be divided by 4 positive divisors.
The sum of these divisors (counting 21897013) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010011100001111100110101
3
Ternary
1112012111001111
4
Quaternary
1103201330311
5
Quinary
21101201023
6
Senary
2101155021
8
Octal
123417465
10
Decimal
21897013
12
Duodecimal
73bba71
16
Hexadecimal
14e1f35
20
Vigesimal
6gh2ad
36
Base36
d1bud
md5
667b13dfe0f7910ce9746e14f106e868
sha1
7c847dd14d7c1901933f20a31b3fa4bfb574911e
sha256
d7caa3950a1b053121b8f720991de0781e437f315c808f71007b11ea84731b43
sha512
d4f1f30050366f8bcff05d14c3dd0e2da01785ac56385f04ffd0de11472f6d75cddb0ffdd89a3c484c2de2c1771100fe5fa7f0c2e5554508b68ae930fdb052b3
ripemd-160
854f51be3fca7fb97f41418a65e3bbd7097d0c02
Diameter
43794026
Circumference
137582990.35272
Area
1.5063282641662E+15
Volume
4.3978786110286E+22
Surface area
6.0253130566648E+15
Circumference
137582990.35272
Perimeter
87588052
Area
479479178322169
Diagonal
30967052.76006
Surface area
2876875069933014
Volume
1.049916180095E+22
Space diagonal
37926739.049996
Perimeter
65691039
Area
2.0762057450634E+14
Altitude
18963369.524998
Surface area
2.0762057450634E+14
Volume
1.2373380843711E+21
Height
10322350.92002