21897009 is an odd 8-digits composite number following 21897008
and preceding 21897010 . In scientific notation, it is written as 2.1897009 × 10^7.
The sum of its digits is 36. It has a total of 2 prime factors and 4 positive divisors.
There are 14598000 positive integers (up to 21897009) that are relatively prime to 21897009.
21897009 has 4 divisors, whose sum is 24330020
The reverse of 21897009 is 90079812
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty-one million eight hundred ninety-seven thousand nine
Scientific notation
2.1897009 × 10^7
Engineering notation
2.1897009 × 10^6
Prime Factorization
9 × 2433001
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21897009
Product of the distinct prime numbers
The prime factorization of 21897009 is 9 × 2433001.
Since it has a total of 2 prime factors.
3 , 2 , 53 , 57 , 71 , 809 , 6046 , 1528 , 12768 , 93311 , 689771 , 216794 , 2341943 , 5307320 , 39303271 , 14250156 , 697668919 , 875760697 , 7590876900 , 1679169720
n×2
43794018
n×3
65691027
n×4
87588036
n×5
109485045
n÷2
10948504.5
n÷3
7299003
n÷3
5474252.25
n÷5
4379401.8
n2
479479003146081
n3
1.0499156047201E+22
n4
2.2990011445796E+29
n5
5.034124875387E+36
2 √n
4679.4240030158
3 √n
279.76599922393
4 √n
68.406315519956
5 √n
29.381702657873
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
-21897008
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 21897009 can be divided by 4 positive divisors.
The sum of these divisors (counting 21897009) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010011100001111100110001
3
Ternary
1112012111001100
4
Quaternary
1103201330301
5
Quinary
21101201014
6
Senary
2101155013
8
Octal
123417461
10
Decimal
21897009
12
Duodecimal
73bba69
16
Hexadecimal
14e1f31
20
Vigesimal
6gh2a9
36
Base36
d1bu9
md5
c20b4123ab1eeb2df66301cac9c83b47
sha1
eb7e27800f0e5fa968f857712b41829b00d52c6f
sha256
1e052c2fe430c993fb387157bb37abc8c5bce39ce5cedecb98e690363dd20598
sha512
c739fdb120345e4c0c3b2ada0184b6a1538ca46d430c2c6cc244d00acf3fc9865b58947dc37435fbecbca87e469daef270e927058b2750e45d9ae30b90184592
ripemd-160
91f6af9eded4a23a00f393d8a893153d31155bab
Diameter
43794018
Circumference
137582965.21998
Area
1.5063277138343E+15
Volume
4.3978762009038E+22
Surface area
6.0253108553371E+15
Circumference
137582965.21998
Perimeter
87588036
Area
479479003146081
Diagonal
30967047.103206
Surface area
2876874018876486
Volume
1.0499156047201E+22
Space diagonal
37926732.121793
Perimeter
65691027
Area
2.0762049865287E+14
Altitude
18963366.060896
Surface area
2.0762049865287E+14
Volume
1.2373374062852E+21
Height
10322349.034402