21931468 is an even 8-digits composite number following 21931467
and preceding 21931469 . In scientific notation, it is written as 2.1931468 × 10^7.
The sum of its digits is 34. It has a total of 4 prime factors and 12 positive divisors.
There are 10121904 positive integers (up to 21931468) that are relatively prime to 21931468.
21931468 has 12 divisors, whose sum is 38608360
The reverse of 21931468 is 86413912
Previous prime number is 169
Is Prime? no
Number parity even
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-one million nine hundred thirty-one thousand four hundred sixty-eight
Scientific notation
2.1931468 × 10^7
Engineering notation
2.1931468 × 10^6
Prime Factorization
2 × 2 × 169 × 32443
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10965734
Product of the distinct prime numbers
The prime factorization of 21931468 is 2 × 2 × 169 × 32443.
Since it has a total of 4 prime factors.
8 , 3 , 75 , 94 , 707 , 500 , 9230 , 4666 , 34388 , 35053 , 156043 , 738951 , 8405546 , 5854664 , 45516905 , 79723274 , 817133769 , 774235894 , 5524253303 , 8707637242
n×2
43862936
n×3
65794404
n×4
87725872
n×5
109657340
n÷2
10965734
n÷3
7310489.3333333
n÷3
5482867
n÷5
4386293.6
n2
480989288635024
n3
1.0548801192042E+22
n4
2.3135069578163E+29
n5
5.0738603813125E+36
2 √n
4683.1045258461
3 √n
279.91267685113
4 √n
68.433212154962
5 √n
29.390944352691
1 , 2 , 4 , 169 , 338 , 676 , 32443 , 64886 , 129772 , 5482867 , 10965734 , 21931468
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21931467
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21931468 can be divided by 12 positive divisors.
The sum of these divisors (counting 21931468) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010011101010010111001100
3
Ternary
1112021020022121
4
Quaternary
1103222113030
5
Quinary
21103301333
6
Senary
2102022324
8
Octal
123522714
10
Decimal
21931468
12
Duodecimal
74179a4
16
Hexadecimal
14ea5cc
20
Vigesimal
6h18d8
36
Base36
d22fg
md5
a0d7cfb86b8cad743b0fc3dc459727b6
sha1
46e94f579e7fea03f2221ff8e9cc32e802eba5eb
sha256
1471cbe15836dcf73b2d7364440a8b3da6a23e92a36da3226fc57ae38ef4687c
sha512
3a2808c746ffcd706b5520b300c746d2fc792b90192d93c3f3192bd895216d9c9cecdbae748fff2b5bb59bb3e62fa57f0e65f9f89bdee4dba5534d21ad8fc449
ripemd-160
9f3d004c60139c85304d25d56abeb286e5b1337e
Diameter
43862936
Circumference
137799477.50248
Area
1.5110724156312E+15
Volume
4.4186715105464E+22
Surface area
6.0442896625247E+15
Circumference
137799477.50248
Perimeter
87725872
Area
480989288635024
Diagonal
31015779.488352
Surface area
2885935731810144
Volume
1.0548801192042E+22
Space diagonal
37986416.860571
Perimeter
65794404
Area
2.0827447145307E+14
Altitude
18993208.430285
Surface area
2.0827447145307E+14
Volume
1.2431881427136E+21
Height
10338593.162784