20797931 is an odd 8-digits composite number following 20797930
and preceding 20797932 . In scientific notation, it is written as 2.0797931 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 15681600 positive integers (up to 20797931) that are relatively prime to 20797931.
20797931 has 8 divisors, whose sum is 21750144
The reverse of 20797931 is 13979702
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million seven hundred ninety-seven thousand nine hundred thirty-one
Scientific notation
2.0797931 × 10^7
Engineering notation
2.0797931 × 10^6
Prime Factorization
77 × 31 × 8713
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20797931
Product of the distinct prime numbers
The prime factorization of 20797931 is 77 × 31 × 8713.
Since it has a total of 3 prime factors.
5 , 7 , 64 , 66 , 982 , 924 , 5116 , 3015 , 94441 , 40184 , 422986 , 612723 , 8166290 , 6954859 , 47404798 , 20835109 , 663995885 , 573597629 , 3214501930 , 772758640
n×2
41595862
n×3
62393793
n×4
83191724
n×5
103989655
n÷2
10398965.5
n÷3
6932643.6666667
n÷3
5199482.75
n÷5
4159586.2
n2
432553933880761
n3
8.9962268706306E+21
n4
1.8710290571572E+29
n5
3.8913533229751E+36
2 √n
4560.4748656253
3 √n
275.00465446668
4 √n
67.531288049506
5 √n
29.080644450437
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
-20797930
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 20797931 can be divided by 8 positive divisors.
The sum of these divisors (counting 20797931) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111010101100111101011
3
Ternary
1110010122101202
4
Quaternary
1033111213223
5
Quinary
20311013211
6
Senary
2021434415
8
Octal
117254753
10
Decimal
20797931
12
Duodecimal
6b6ba0b
16
Hexadecimal
13d59eb
20
Vigesimal
69jegb
36
Base36
cdrsb
md5
21ec8722ca2340ce702d2f514453abce
sha1
0c42bd33c17f71c256bd3727dd1912716e4d4ab1
sha256
8231c4af2c90e7981047b216b2b3f6778821b158a4bced77053d49a93ccd6c0c
sha512
aafb9e12881cce8b598f339dfb75693e3dc4ab7f0d007672934d543cda79abdad51c2faaafa51fb9c23fe94ccf1158176561bb57bca2b7debd852537c7089cd8
ripemd-160
3a4d1d9f227a275765b7d4e2003b1f3f9222181b
Diameter
41595862
Circumference
130677254.47893
Area
1.3589082609612E+15
Volume
3.7683306995734E+22
Surface area
5.4356330438447E+15
Circumference
130677254.47893
Perimeter
83191724
Area
432553933880761
Diagonal
29412716.0895
Surface area
2595323603284566
Volume
8.9962268706306E+21
Space diagonal
36023073.184312
Perimeter
62393793
Area
1.8730134762382E+14
Altitude
18011536.592156
Surface area
1.8730134762382E+14
Volume
1.0602155042193E+21
Height
9804238.6964999