21490968 is an even 8-digits composite number following 21490967
and preceding 21490969 . In scientific notation, it is written as 2.1490968 × 10^7.
The sum of its digits is 39. It has a total of 5 prime factors and 16 positive divisors.
There are 7163648 positive integers (up to 21490968) that are relatively prime to 21490968.
21490968 has 16 divisors, whose sum is 53727480
The reverse of 21490968 is 86909412
Previous prime number is 3
Is Prime? no
Number parity even
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty-one million four hundred ninety thousand nine hundred sixty-eight
Scientific notation
2.1490968 × 10^7
Engineering notation
2.1490968 × 10^6
Prime Factorization
2 × 2 × 2 × 3 × 895457
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
5372742
Product of the distinct prime numbers
The prime factorization of 21490968 is 2 × 2 × 2 × 3 × 895457.
Since it has a total of 5 prime factors.
8 , 4 , 3 , 31 , 261 , 760 , 9573 , 5903 , 49510 , 33995 , 759496 , 365485 , 4278291 , 4056996 , 86208389 , 35916278 , 700998751 , 469385849 , 7337489089 , 8060395877
n×2
42981936
n×3
64472904
n×4
85963872
n×5
107454840
n÷2
10745484
n÷3
7163656
n÷3
5372742
n÷5
4298193.6
n2
461861705577024
n3
9.9258551349812E+21
n4
2.1331623507852E+29
n5
4.5843723819529E+36
2 √n
4635.8351998318
3 √n
278.02594516577
4 √n
68.086967914806
5 √n
29.271919052648
1 , 2 , 3 , 4 , 6 , 8 , 12 , 24 , 895457 , 1790914 , 2686371 , 3581828 , 5372742 , 7163656 , 10745484 , 21490968
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21490967
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21490968 can be divided by 16 positive divisors.
The sum of these divisors (counting 21490968) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010001111110110100011000
3
Ternary
1111102212001210
4
Quaternary
1101332310120
5
Quinary
21000202333
6
Senary
2044343120
8
Octal
121766430
10
Decimal
21490968
12
Duodecimal
7244aa0
16
Hexadecimal
147ed18
20
Vigesimal
6e6788
36
Base36
csmjc
md5
5e9f38399cbc83b116524e1fb6694ffa
sha1
46afaed711e8dcaf0808a387adcd3d00b6214ac7
sha256
a30baf9f70b5e50eed59601b6d2bbc57efa88e7266d32293b7635e8686626d61
sha512
69079d6c82bd2b1fc95795be4a241e1deb9ab2c2ec3994e88fef503a968f4ee0109d2f85f031f777feef3ec12b48ea6ae5abf69db21d9264ca8752099a305b42
ripemd-160
81879667980c5c34c5a56b8a6d297d14ed5b9ecd
Diameter
42981936
Circumference
135031734.37467
Area
1.4509813412152E+15
Volume
4.1577324763538E+22
Surface area
5.8039253648609E+15
Circumference
135031734.37467
Perimeter
85963872
Area
461861705577024
Diagonal
30392818.414126
Surface area
2771170233462144
Volume
9.9258551349812E+21
Space diagonal
37223448.479837
Perimeter
64472904
Area
1.9999198503246E+14
Altitude
18611724.239918
Surface area
1.9999198503246E+14
Volume
1.1697732458368E+21
Height
10130939.471375