21741921 is an odd 8-digits composite number following 21741920
and preceding 21741922 . In scientific notation, it is written as 2.1741921 × 10^7.
The sum of its digits is 27. It has a total of 2 prime factors and 4 positive divisors.
There are 14494608 positive integers (up to 21741921) that are relatively prime to 21741921.
21741921 has 4 divisors, whose sum is 24157700
The reverse of 21741921 is 12914712
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-one million seven hundred forty-one thousand nine hundred twenty-one
Scientific notation
2.1741921 × 10^7
Engineering notation
2.1741921 × 10^6
Prime Factorization
9 × 2415769
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21741921
Product of the distinct prime numbers
The prime factorization of 21741921 is 9 × 2415769.
Since it has a total of 2 prime factors.
1 , 1 , 85 , 55 , 358 , 907 , 4630 , 2819 , 95561 , 64449 , 580380 , 30117 , 7057914 , 8231243 , 99506222 , 55849285 , 220948846 , 277743070 , 3360969353 , 3635470653
n×2
43483842
n×3
65225763
n×4
86967684
n×5
108709605
n÷2
10870960.5
n÷3
7247307
n÷3
5435480.25
n÷5
4348384.2
n2
472711128770241
n3
1.0277648017543E+22
n4
2.2345581126324E+29
n5
4.8583585954762E+36
2 √n
4662.8232863792
3 √n
279.10394246348
4 √n
68.284868648766
5 √n
29.339964408518
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
-21741920
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 21741921 can be divided by 4 positive divisors.
The sum of these divisors (counting 21741921) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010111100000101100001
3
Ternary
1111220121022100
4
Quaternary
1102330011201
5
Quinary
21031220141
6
Senary
2054001013
8
Octal
122740541
10
Decimal
21741921
12
Duodecimal
7346169
16
Hexadecimal
14bc161
20
Vigesimal
6fheg1
36
Base36
cy069
md5
a8a03536fdf088ba27269471ffd3cb1b
sha1
096afc97cd4cd89420d351d2c2b171db79e71881
sha256
15fa9d4560a20e41f1f5a4ff1b6ef1ebc04edb6e4b681cce975de246aa9e8476
sha512
9b67a95cc5ed41ea88c4b8e51c872365728440929ef4fdd77d91541ffed0e76aa6a35177ba87f6a03d9b5d14211c895d99c2e50f706dfc8bc1090551710228d1
ripemd-160
fab6e2ee02bb250d67659a45c4db734675756d52
Diameter
43483842
Circumference
136608518.57706
Area
1.4850658094147E+15
Volume
4.3050911344128E+22
Surface area
5.9402632376589E+15
Circumference
136608518.57706
Perimeter
86967684
Area
472711128770241
Diagonal
30747719.550244
Surface area
2836266772621446
Volume
1.0277648017543E+22
Space diagonal
37658111.826149
Perimeter
65225763
Area
2.0468992308332E+14
Altitude
18829055.913074
Surface area
2.0468992308332E+14
Volume
1.2112324346422E+21
Height
10249239.850081