21496681 is an odd 8-digits composite number following 21496680
and preceding 21496682 . In scientific notation, it is written as 2.1496681 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 21445200 positive integers (up to 21496681) that are relatively prime to 21496681.
21496681 has 4 divisors, whose sum is 21548164
The reverse of 21496681 is 18669412
Previous prime number is 421
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty-one million four hundred ninety-six thousand six hundred eighty-one
Scientific notation
2.1496681 × 10^7
Engineering notation
2.1496681 × 10^6
Prime Factorization
421 × 51061
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21496681
Product of the distinct prime numbers
The prime factorization of 21496681 is 421 × 51061.
Since it has a total of 2 prime factors.
7 , 5 , 76 , 77 , 743 , 49 , 3449 , 544 , 76881 , 98154 , 392604 , 879094 , 2925837 , 636289 , 34992600 , 89219463 , 530604795 , 258002538 , 4283047099 , 6412360148
n×2
42993362
n×3
64490043
n×4
85986724
n×5
107483405
n÷2
10748340.5
n÷3
7165560.3333333
n÷3
5374170.25
n÷5
4299336.2
n2
462107294015761
n3
9.93377308723E+21
n4
2.1354315118257E+29
n5
4.5904690007065E+36
2 √n
4636.4513369602
3 √n
278.05057910345
4 √n
68.091492397804
5 √n
29.273475173287
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21496680
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21496681 can be divided by 4 positive divisors.
The sum of these divisors (counting 21496681) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010000000001101101001
3
Ternary
1111110010220101
4
Quaternary
1102000031221
5
Quinary
21000343211
6
Senary
2044425401
8
Octal
122001551
10
Decimal
21496681
12
Duodecimal
7248261
16
Hexadecimal
1480369
20
Vigesimal
6e71e1
36
Base36
csqy1
md5
c98d27eb6154223249e71402b0e0617d
sha1
5d4e63d238e0f81277447943ad2bcceb2d817965
sha256
1f553a90c76686c62ad0f2fbf07fee658d354d68c8db90471c0b99efd3a82427
sha512
8eed9ba434343a71e318d1f7f2e3a38d48b0ffcdc50802da022d8d33ca24693ea2b418003a81f1f9fde0e599491b0e8c029a021765fe570b3fb171d320c59fc4
ripemd-160
2168fd942e42cf0c9285145ed4604576007b621b
Diameter
42993362
Circumference
135067630.21233
Area
1.4517528800502E+15
Volume
4.161049140436E+22
Surface area
5.8070115202007E+15
Circumference
135067630.21233
Perimeter
85986724
Area
462107294015761
Diagonal
30400897.816208
Surface area
2772643764094566
Volume
9.93377308723E+21
Space diagonal
37233343.686101
Perimeter
64490043
Area
2.0009832794587E+14
Altitude
18616671.84305
Surface area
2.0009832794587E+14
Volume
1.1707063854581E+21
Height
10133632.605403