20990807 is an odd 8-digits composite number following 20990806
and preceding 20990808 . In scientific notation, it is written as 2.0990807 × 10^7.
The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors.
There are 20839656 positive integers (up to 20990807) that are relatively prime to 20990807.
20990807 has 4 divisors, whose sum is 21141960
The reverse of 20990807 is 70809902
Previous prime number is 139
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty million nine hundred ninety thousand eight hundred seven
Scientific notation
2.0990807 × 10^7
Engineering notation
2.0990807 × 10^6
Prime Factorization
139 × 151013
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20990807
Product of the distinct prime numbers
The prime factorization of 20990807 is 139 × 151013.
Since it has a total of 2 prime factors.
7 , 4 , 99 , 51 , 17 , 693 , 3398 , 4132 , 25300 , 88131 , 596409 , 956480 , 5311021 , 909532 , 57552744 , 96714911 , 503758166 , 113980839 , 3863951873 , 2010917079
n×2
41981614
n×3
62972421
n×4
83963228
n×5
104954035
n÷2
10495403.5
n÷3
6996935.6666667
n÷3
5247701.75
n÷5
4198161.4
n2
440613978511249
n3
9.2488429844318E+21
n4
1.9414067805951E+29
n5
4.0751695039963E+36
2 √n
4581.5725466263
3 √n
275.8521533654
4 √n
67.687314517761
5 √n
29.134383130954
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
-20990806
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 20990807 can be divided by 4 positive divisors.
The sum of these divisors (counting 20990807) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000000100101101010111
3
Ternary
1110111102222022
4
Quaternary
1100010231113
5
Quinary
20333201212
6
Senary
2025523355
8
Octal
120045527
10
Decimal
20990807
12
Duodecimal
704355b
16
Hexadecimal
1404b57
20
Vigesimal
6b3h07
36
Base36
chwlz
md5
9aa034f552bd402b1f96ff26cf136eb8
sha1
1fb0c8b6486b214df7c18803ef307b7d383289f0
sha256
4f5de0b968e43d960304ed4bb752d9034acac9e25b8d09529e08a0ff3ff26df5
sha512
090afdc9d22a7ffda8fb358cfafa9795b08964697c64da2c34956a136ccb1e09e8dcac391915b2b835fbe07bb7dde6105f7c9ccabc3f9a05cf38cb190ab2f732
ripemd-160
8e91712342f97860d680414340f1e99e73ecd740
Diameter
41981614
Circumference
131889130.12824
Area
1.3842296379599E+15
Volume
3.8741462898795E+22
Surface area
5.5369185518396E+15
Circumference
131889130.12824
Perimeter
83963228
Area
440613978511249
Diagonal
29685483.944556
Surface area
2643683871067494
Volume
9.2488429844318E+21
Space diagonal
36357144.215872
Perimeter
62972421
Area
1.9079144932664E+14
Altitude
18178572.107936
Surface area
1.9079144932664E+14
Volume
1.0899865987369E+21
Height
9895161.314852