20798921 is an odd 8-digits composite number following 20798920
and preceding 20798922 . In scientific notation, it is written as 2.0798921 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 16977600 positive integers (up to 20798921) that are relatively prime to 20798921.
20798921 has 8 divisors, whose sum is 22742688
The reverse of 20798921 is 12989702
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million seven hundred ninety-eight thousand nine hundred twenty-one
Scientific notation
2.0798921 × 10^7
Engineering notation
2.0798921 × 10^6
Prime Factorization
481 × 11 × 3931
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20798921
Product of the distinct prime numbers
The prime factorization of 20798921 is 481 × 11 × 3931.
Since it has a total of 3 prime factors.
8 , 6 , 63 , 66 , 519 , 21 , 6029 , 8300 , 13099 , 54128 , 439005 , 431978 , 8341454 , 5577651 , 44194626 , 60249565 , 188144979 , 976289491 , 6106333930 , 2168171002
n×2
41597842
n×3
62396763
n×4
83195684
n×5
103994605
n÷2
10399460.5
n÷3
6932973.6666667
n÷3
5199730.25
n÷5
4159784.2
n2
432595114764241
n3
8.9975116169674E+21
n4
1.8713853331789E+29
n5
3.8922795705346E+36
2 √n
4560.583405662
3 √n
275.0090178861
4 √n
67.532091672493
5 √n
29.08092129807
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
-20798920
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 20798921 can be divided by 8 positive divisors.
The sum of these divisors (counting 20798921) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111010101110111001001
3
Ternary
1110010200202102
4
Quaternary
1033111313021
5
Quinary
20311031141
6
Senary
2021443145
8
Octal
117256711
10
Decimal
20798921
12
Duodecimal
6b704b5
16
Hexadecimal
13d5dc9
20
Vigesimal
69jh61
36
Base36
cdsjt
md5
7faf6aa8f02643b9648d685cc9ae57ee
sha1
6a6e9c746ede595b9b11464635e72f765231919e
sha256
2212cef265ee78ec5ddc6f6418f38fdb5971f8309f919d28a7ca230d4100215f
sha512
7f18dc93782f3f3a3d30ce6f78c8f71bb67aa5374b313f1edc333440ca9d30664ce7df74ac9a3ccfd5d5faf7d6fab34ab28568f255875a3ce9fef5451cd11632
ripemd-160
8971ebe54e8bcc15207ba620f5db6d1670bd3575
Diameter
41597842
Circumference
130683474.83239
Area
1.3590376345222E+15
Volume
3.7688688528605E+22
Surface area
5.4361505380887E+15
Circumference
130683474.83239
Perimeter
83195684
Area
432595114764241
Diagonal
29414116.160927
Surface area
2595570688585446
Volume
8.9975116169674E+21
Space diagonal
36024787.914611
Perimeter
62396763
Area
1.8731917946944E+14
Altitude
18012393.957306
Surface area
1.8731917946944E+14
Volume
1.0603669130271E+21
Height
9804705.3869755