20798749 is an odd 8-digits composite number following 20798748
and preceding 20798750 . In scientific notation, it is written as 2.0798749 × 10^7.
The sum of its digits is 46. It has a total of 2 prime factors and 4 positive divisors.
There are 19704060 positive integers (up to 20798749) that are relatively prime to 20798749.
20798749 has 4 divisors, whose sum is 21893440
The reverse of 20798749 is 94789702
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 46
Digital Root 1
Name
twenty million seven hundred ninety-eight thousand seven hundred forty-nine
Scientific notation
2.0798749 × 10^7
Engineering notation
2.0798749 × 10^6
Prime Factorization
19 × 1094671
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20798749
Product of the distinct prime numbers
The prime factorization of 20798749 is 19 × 1094671.
Since it has a total of 2 prime factors.
2 , 6 , 64 , 3 , 994 , 270 , 168 , 9753 , 94591 , 71527 , 70574 , 674410 , 6429517 , 3476684 , 13666592 , 6338712 , 171124067 , 886646402 , 2609291090 , 7182079961
n×2
41597498
n×3
62396247
n×4
83194996
n×5
103993745
n÷2
10399374.5
n÷3
6932916.3333333
n÷3
5199687.25
n÷5
4159749.8
n2
432587959965001
n3
8.9972883997341E+21
n4
1.8713234310668E+29
n5
3.8921186340577E+36
2 √n
4560.5645483865
3 √n
275.00825980701
4 √n
67.531952055205
5 √n
29.080873200046
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
-20798748
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 20798749 can be divided by 4 positive divisors.
The sum of these divisors (counting 20798749) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111010101110100011101
3
Ternary
1110010200112001
4
Quaternary
1033111310131
5
Quinary
20311024444
6
Senary
2021442301
8
Octal
117256435
10
Decimal
20798749
12
Duodecimal
6b70391
16
Hexadecimal
13d5d1d
20
Vigesimal
69jgh9
36
Base36
cdsf1
md5
bb144ff914bc3bb04f9b5194454058ca
sha1
d67198f70aa28528a55c1e3efd4a674a67987797
sha256
5e0a74b2830979e48cad2ee673f286bc4d479714b259ece00baff46bf3a8021c
sha512
246d00d1c1138d437b771f179bd09c4f64fc72b7c53ca6c5a5f7b968dc480c5c520d26d597fcd46888bb5c5820a4f97d516f7ee6af25de063b10404718d130a5
ripemd-160
ad9328a70ffa7ccd9559f7cc9c8ab5f623657c59
Diameter
41597498
Circumference
130682394.12452
Area
1.3590151570574E+15
Volume
3.7687753518444E+22
Surface area
5.4360606282298E+15
Circumference
130682394.12452
Perimeter
83194996
Area
432587959965001
Diagonal
29413872.916194
Surface area
2595527759790006
Volume
8.9972883997341E+21
Space diagonal
36024490.001872
Perimeter
62396247
Area
1.8731608135049E+14
Altitude
18012245.000936
Surface area
1.8731608135049E+14
Volume
1.0603406066238E+21
Height
9804624.305398