20991772 is an even 8-digits composite number following 20991771
and preceding 20991773 . In scientific notation, it is written as 2.0991772 × 10^7.
The sum of its digits is 37. It has a total of 4 prime factors and 12 positive divisors.
There are 10468656 positive integers (up to 20991772) that are relatively prime to 20991772.
20991772 has 12 divisors, whose sum is 36830920
The reverse of 20991772 is 27719902
Previous prime number is 13219
Is Prime? no
Number parity even
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty million nine hundred ninety-one thousand seven hundred seventy-two
Scientific notation
2.0991772 × 10^7
Engineering notation
2.0991772 × 10^6
Prime Factorization
2 × 2 × 13219 × 397
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10495886
Product of the distinct prime numbers
The prime factorization of 20991772 is 2 × 2 × 13219 × 397.
Since it has a total of 4 prime factors.
10 , 1 , 10 , 68 , 852 , 27 , 2991 , 7860 , 47931 , 35969 , 477063 , 235548 , 8603089 , 985311 , 99683699 , 67813207 , 765475584 , 242950979 , 304054444 , 1563562057
n×2
41983544
n×3
62975316
n×4
83967088
n×5
104958860
n÷2
10495886
n÷3
6997257.3333333
n÷3
5247943
n÷5
4198354.4
n2
440654491699984
n3
9.250118620542E+21
n4
1.9417638105537E+29
n5
4.0761063188995E+36
2 √n
4581.6778586016
3 √n
275.85638050555
4 √n
67.688092443218
5 √n
29.134651002149
1 , 2 , 4 , 397 , 794 , 1588 , 13219 , 26438 , 52876 , 5247943 , 10495886 , 20991772
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20991771
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20991772 can be divided by 12 positive divisors.
The sum of these divisors (counting 20991772) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010000000100111100011100
3
Ternary
1110111111022001
4
Quaternary
1100010330130
5
Quinary
20333214042
6
Senary
2025532044
8
Octal
120047434
10
Decimal
20991772
12
Duodecimal
7044024
16
Hexadecimal
1404f1c
20
Vigesimal
6b3j8c
36
Base36
chxcs
md5
38432517ee39e0b25129bc29fea45c24
sha1
a203ee1b24d5b095cd4180cb376084ebcfca379d
sha256
0111dffac8c7f6d2f6f58d9df2825edd3add2336a307d8b28aef34384e07da8f
sha512
a0f48d36e8e84511dfc55c221d623dcb3a9df94fc2adf0e9d389d59fbac7a886ea948c0710b1d3f6761f124cd5e70d670f4743be8db83be785a9cefbcafde93c
ripemd-160
b37eae653dace3dd75d5250a1148c7df47e48fd9
Diameter
41983544
Circumference
131895193.40206
Area
1.384356913896E+15
Volume
3.8746806270838E+22
Surface area
5.5374276555841E+15
Circumference
131895193.40206
Perimeter
83967088
Area
440654491699984
Diagonal
29686848.660644
Surface area
2643926950199904
Volume
9.250118620542E+21
Space diagonal
36358815.644902
Perimeter
62975316
Area
1.9080899205195E+14
Altitude
18179407.822451
Surface area
1.9080899205195E+14
Volume
1.0901369338942E+21
Height
9895616.2202146