21508769 is an odd 8-digits composite number following 21508768
and preceding 21508770 . In scientific notation, it is written as 2.1508769 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 21204576 positive integers (up to 21508769) that are relatively prime to 21508769.
21508769 has 8 divisors, whose sum is 21815040
The reverse of 21508769 is 96780512
Previous prime number is 103
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty-one million five hundred eight thousand seven hundred sixty-nine
Scientific notation
2.1508769 × 10^7
Engineering notation
2.1508769 × 10^6
Prime Factorization
569 × 103 × 367
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21508769
Product of the distinct prime numbers
The prime factorization of 21508769 is 569 × 103 × 367.
Since it has a total of 3 prime factors.
7 , 1 , 12 , 97 , 663 , 204 , 15 , 5215 , 81920 , 42064 , 778506 , 215310 , 9982906 , 6455088 , 12131200 , 9497101 , 898341275 , 647416930 , 824434968 , 4584578412
n×2
43017538
n×3
64526307
n×4
86035076
n×5
107543845
n÷2
10754384.5
n÷3
7169589.6666667
n÷3
5377192.25
n÷5
4301753.8
n2
462627143895361
n3
9.9505403711751E+21
n4
2.1402387426878E+29
n5
4.6033900721322E+36
2 √n
4637.754736939
3 √n
278.10268707922
4 √n
68.101062671143
5 √n
29.276766641419
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
-21508768
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 21508769 can be divided by 8 positive divisors.
The sum of these divisors (counting 21508769) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010000011001010100001
3
Ternary
1111110202111002
4
Quaternary
1102003022201
5
Quinary
21001240034
6
Senary
2045001345
8
Octal
122031241
10
Decimal
21508769
12
Duodecimal
7253255
16
Hexadecimal
14832a1
20
Vigesimal
6e8bi9
36
Base36
ct09t
md5
a08ceaf0932b08e028a5cd154b97880a
sha1
6d8c4d37f94a2a5716f72a42f32b36f3aa101ea2
sha256
3507c2ddefce40694575777a7283656b785a12ff55479b662c99770a36a84308
sha512
d1b0ca5705900dd89fe871ee15003dc6004f713a6800d4d391151c91be7896ca196c24b5ccaf4e655395ed8fb55099346949d76f344b8853cd22d8a3c683a423
ripemd-160
9eb122df389cfc062cde2ccfb7551d9a63693289
Diameter
43017538
Circumference
135143581.35632
Area
1.4533860366129E+15
Volume
4.168072603911E+22
Surface area
5.8135441464516E+15
Circumference
135143581.35632
Perimeter
86035076
Area
462627143895361
Diagonal
30417992.82975
Surface area
2775762863372166
Volume
9.9505403711751E+21
Space diagonal
37254280.716262
Perimeter
64526307
Area
2.0032342954681E+14
Altitude
18627140.358131
Surface area
2.0032342954681E+14
Volume
1.1726824288214E+21
Height
10139330.94325