21291260 is an even 8-digits composite number following 21291259
and preceding 21291261 . In scientific notation, it is written as 2.1291260 × 10^7.
The sum of its digits is 23. It has a total of 5 prime factors and 24 positive divisors.
There are 8388864 positive integers (up to 21291260) that are relatively prime to 21291260.
21291260 has 24 divisors, whose sum is 45381840
The reverse of 21291260 is 06219212
Previous prime number is 67
Is Prime? no
Number parity even
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty-one million two hundred ninety-one thousand two hundred sixty
Scientific notation
2.1291260 × 10^7
Engineering notation
2.1291260 × 10^6
Prime Factorization
2 × 2 × 5 × 67 × 15889
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
10645630
Product of the distinct prime numbers
The prime factorization of 21291260 is 2 × 2 × 5 × 67 × 15889.
Since it has a total of 5 prime factors.
5 , 10 , 8 , 87 , 173 , 9 , 8535 , 3900 , 56935 , 90669 , 191951 , 266323 , 304960 , 2685126 , 82973798 , 94130679 , 638834777 , 376554292 , 201805599 , 9282611090
n×2
42582520
n×3
63873780
n×4
85165040
n×5
106456300
n÷2
10645630
n÷3
7097086.6666667
n÷3
5322815
n÷5
4258252
n2
453317752387600
n3
9.6517061287E+21
n4
2.0549698462975E+29
n5
4.3752897289679E+36
2 √n
4614.2453337464
3 √n
277.16206462388
4 √n
67.928236645348
5 √n
29.217312971828
1 , 2 , 4 , 5 , 10 , 20 , 67 , 134 , 268 , 335 , 670 , 1340 , 15889 , 31778 , 63556 , 79445 , 158890 , 317780 , 1064563 , 2129126 , 4258252 , 5322815 , 10645630 , 21291260
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21291259
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21291260 can be divided by 24 positive divisors.
The sum of these divisors (counting 21291260) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1010001001110000011111100
3
Ternary
1111001201010012
4
Quaternary
1101032003330
5
Quinary
20422310020
6
Senary
2040202352
8
Octal
121160374
10
Decimal
21291260
12
Duodecimal
71693b8
16
Hexadecimal
144e0fc
20
Vigesimal
6d1830
36
Base36
cocfw
md5
c1259105954436466295e8a04dd9e008
sha1
37c7ac503f77fb6bf25058d5ad7407bbbd452491
sha256
e73b6a9bdc3f4c500ac34ad0aec7b454e5d158fbbd4a3ef634cc2861d61a833c
sha512
23b47809dbcdcbcd699f8ccdcde9ee15d5d73fb0494be966f67d4293d296854495a3232f8cb735b8778a493ed17a5b1c187450ebcf2c429c03ef5f04e5c76021
ripemd-160
e312f67be2d8922bd29ec2a3ba0a539563a911cb
Diameter
42582520
Circumference
133776932.00334
Area
1.4241397206427E+15
Volume
4.0428972091375E+22
Surface area
5.6965588825709E+15
Circumference
133776932.00334
Perimeter
85165040
Area
453317752387600
Diagonal
30110388.652012
Surface area
2719906514325600
Volume
9.6517061287E+21
Space diagonal
36877544.077159
Perimeter
63873780
Area
1.9629234477706E+14
Altitude
18438772.038579
Surface area
1.9629234477706E+14
Volume
1.1374644756039E+21
Height
10036796.217337