20991694 is an even 8-digits composite number following 20991693
and preceding 20991695 . In scientific notation, it is written as 2.0991694 × 10^7.
The sum of its digits is 40. It has a total of 4 prime factors and 16 positive divisors.
There are 9910080 positive integers (up to 20991694) that are relatively prime to 20991694.
20991694 has 16 divisors, whose sum is 33256080
The reverse of 20991694 is 49619902
Previous prime number is 1481
Is Prime? no
Number parity even
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty million nine hundred ninety-one thousand six hundred ninety-four
Scientific notation
2.0991694 × 10^7
Engineering notation
2.0991694 × 10^6
Prime Factorization
2 × 19 × 1481 × 373
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20991694
Product of the distinct prime numbers
The prime factorization of 20991694 is 2 × 19 × 1481 × 373.
Since it has a total of 4 prime factors.
2 , 6 , 21 , 48 , 83 , 135 , 6971 , 762 , 9770 , 89913 , 145821 , 333322 , 5107746 , 8221145 , 81585840 , 54143953 , 378341059 , 72927414 , 4203910006 , 5081291262
n×2
41983388
n×3
62975082
n×4
83966776
n×5
104958470
n÷2
10495847
n÷3
6997231.3333333
n÷3
5247923.5
n÷5
4198338.8
n2
440651216989636
n3
9.250015507774E+21
n4
1.9417349503445E+29
n5
4.0760305906736E+36
2 √n
4581.6693464282
3 √n
275.85603883478
4 √n
67.688029565265
5 √n
29.13462935075
1 , 2 , 19 , 38 , 373 , 746 , 1481 , 2962 , 7087 , 14174 , 28139 , 56278 , 552413 , 1104826 , 10495847 , 20991694
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20991693
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20991694 can be divided by 16 positive divisors.
The sum of these divisors (counting 20991694) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000000100111011001110
3
Ternary
1110111111012011
4
Quaternary
1100010323032
5
Quinary
20333213234
6
Senary
2025531434
8
Octal
120047316
10
Decimal
20991694
12
Duodecimal
7043b7a
16
Hexadecimal
1404ece
20
Vigesimal
6b3j4e
36
Base36
chxam
md5
08795c8896cd64ba830e0fed682586f4
sha1
bfb71155442be389f35af7b6b1ba61cf1a7ffe64
sha256
e6fc021a3faa8dbe34a933c07bc583403914c8533641b3899225353c7779f1aa
sha512
dd6e5f434c504e60d5e3ce7e6974cebf796e0cfaf6379602d9d1bd2ae96a31e90d7ea0142d31bdb302ef40bfdbe6fb0a5e091c676949f6ab430ce533f354000f
ripemd-160
dc639a9519d0a2b28795450a9a523312d647e9da
Diameter
41983388
Circumference
131894703.31361
Area
1.38434662609E+15
Volume
3.8746374353086E+22
Surface area
5.5373865043602E+15
Circumference
131894703.31361
Perimeter
83966776
Area
440651216989636
Diagonal
29686738.351986
Surface area
2643907301937816
Volume
9.250015507774E+21
Space diagonal
36358680.544939
Perimeter
62975082
Area
1.9080757406078E+14
Altitude
18179340.272469
Surface area
1.9080757406078E+14
Volume
1.090124781938E+21
Height
9895579.450662