21496721 is an odd 8-digits composite number following 21496720
and preceding 21496722 . In scientific notation, it is written as 2.1496721 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 20163328 positive integers (up to 21496721) that are relatively prime to 21496721.
21496721 has 8 divisors, whose sum is 22838760
The reverse of 21496721 is 12769412
Previous prime number is 317
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million four hundred ninety-six thousand seven hundred twenty-one
Scientific notation
2.1496721 × 10^7
Engineering notation
2.1496721 × 10^6
Prime Factorization
17 × 317 × 3989
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21496721
Product of the distinct prime numbers
The prime factorization of 21496721 is 17 × 317 × 3989.
Since it has a total of 3 prime factors.
10 , 4 , 63 , 61 , 366 , 736 , 8092 , 6951 , 80232 , 86425 , 570955 , 804825 , 9310616 , 7007851 , 38002482 , 93208601 , 61181532 , 671927874 , 1060930656 , 7907274308
n×2
42993442
n×3
64490163
n×4
85986884
n×5
107483605
n÷2
10748360.5
n÷3
7165573.6666667
n÷3
5374180.25
n÷5
4299344.2
n2
462109013751841
n3
9.9338285402085E+21
n4
2.135447405907E+29
n5
4.5905117094956E+36
2 √n
4636.4556506021
3 √n
278.05075156444
4 √n
68.091524073133
5 √n
29.273486067416
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
-21496720
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 21496721 can be divided by 8 positive divisors.
The sum of these divisors (counting 21496721) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010000000001110010001
3
Ternary
1111110010221212
4
Quaternary
1102000032101
5
Quinary
21000343341
6
Senary
2044425505
8
Octal
122001621
10
Decimal
21496721
12
Duodecimal
7248295
16
Hexadecimal
1480391
20
Vigesimal
6e71g1
36
Base36
csqz5
md5
cf66db68242cd3fad44bc1d8a9bec231
sha1
60f18c94ff9e0c4d2e45535aaee85ed8d53c645d
sha256
55b58411716869abb8b99524753eb3422de915ff622abd51dfb99fb6b8d34364
sha512
4d70c0ffc50a4efdd8c0df7acebd0ee13fe5ab4211b4b5601df328f6ab8f29f7cb325045208c739df019daf5dd357e0ab50f74dd8e518a9064b30d784a137290
ripemd-160
3b5cf08b972e8b21d64d6cf37b68cf8e94892e5e
Diameter
42993442
Circumference
135067881.53974
Area
1.4517582827604E+15
Volume
4.1610723685253E+22
Surface area
5.8070331310416E+15
Circumference
135067881.53974
Perimeter
85986884
Area
462109013751841
Diagonal
30400954.384751
Surface area
2772654082511046
Volume
9.9338285402085E+21
Space diagonal
37233412.968133
Perimeter
64490163
Area
2.0009907261343E+14
Altitude
18616706.484066
Surface area
2.0009907261343E+14
Volume
1.1707129206543E+21
Height
10133651.461584