20702991 is an odd 8-digits composite number following 20702990
and preceding 20702992 . In scientific notation, it is written as 2.0702991 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 12672000 positive integers (up to 20702991) that are relatively prime to 20702991.
20702991 has 8 divisors, whose sum is 27646384
The reverse of 20702991 is 19920702
Previous prime number is 697
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million seven hundred two thousand nine hundred ninety-one
Scientific notation
2.0702991 × 10^7
Engineering notation
2.0702991 × 10^6
Prime Factorization
3 × 697 × 9901
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20702991
Product of the distinct prime numbers
The prime factorization of 20702991 is 3 × 697 × 9901.
Since it has a total of 3 prime factors.
10 , 7 , 73 , 7 , 511 , 893 , 6456 , 7167 , 75135 , 63431 , 436709 , 928973 , 1068252 , 585226 , 7618353 , 23143205 , 35384920 , 906234544 , 4983862692 , 5861104025
n×2
41405982
n×3
62108973
n×4
82811964
n×5
103514955
n÷2
10351495.5
n÷3
6900997
n÷3
5175747.75
n÷5
4140598.2
n2
428613836346081
n3
8.8735883963484E+21
n4
1.8370982070731E+29
n5
3.803342764715E+36
2 √n
4550.053955724
3 √n
274.58556196188
4 √n
67.45408776141
5 √n
29.054045924519
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
-20702990
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 20702991 can be divided by 8 positive divisors.
The sum of these divisors (counting 20702991) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110111110011100001111
3
Ternary
1102221211011110
4
Quaternary
1032332130033
5
Quinary
20244443431
6
Senary
2015423103
8
Octal
116763417
10
Decimal
20702991
12
Duodecimal
6b24a93
16
Hexadecimal
13be70f
20
Vigesimal
697h9b
36
Base36
cbqj3
md5
7a0e8bbf19e00851f46501cdcd750f9c
sha1
1f926776553ea7a0f69da9028331a4ec9c840416
sha256
91a82ea576e5ed72778737442d2b7d59950cef8d9ef7bfc4d197a3f244d33492
sha512
e38d21c2a8633c4ea38f79ce6cace0a253ecdae319ce8279f9a6a9eecd9c062c6810045263587520e4c4ef8cda6f93cbdc6c4d45e0b173d45322fb7edfb0f578
ripemd-160
59b73a85f59f338ff1442515099ff91f30304d5d
Diameter
41405982
Circumference
130080728.86587
Area
1.3465300794918E+15
Volume
3.716960015593E+22
Surface area
5.3861203179671E+15
Circumference
130080728.86587
Perimeter
82811964
Area
428613836346081
Diagonal
29278450.653888
Surface area
2571683018076486
Volume
8.8735883963484E+21
Space diagonal
35858632.280641
Perimeter
62108973
Area
1.8559523534461E+14
Altitude
17929316.140321
Surface area
1.8559523534461E+14
Volume
1.0457624214194E+21
Height
9759483.551296