20161791 is an odd 8-digits composite number following 20161790
and preceding 20161792 . In scientific notation, it is written as 2.0161791 × 10^7.
The sum of its digits is 27. It has a total of 5 prime factors and 24 positive divisors.
There are 12078720 positive integers (up to 20161791) that are relatively prime to 20161791.
20161791 has 24 divisors, whose sum is 25041744
The reverse of 20161791 is 19716102
Previous prime number is 41
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million one hundred sixty-one thousand seven hundred ninety-one
Scientific notation
2.0161791 × 10^7
Engineering notation
2.0161791 × 10^6
Prime Factorization
9 × 9 × 13 × 41 × 467
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
2240199
Product of the distinct prime numbers
The prime factorization of 20161791 is 9 × 9 × 13 × 41 × 467.
Since it has a total of 5 prime factors.
9 , 3 , 36 , 4 , 581 , 214 , 596 , 4827 , 33146 , 24038 , 749884 , 734511 , 9622446 , 3382538 , 12123611 , 27916224 , 958550719 , 185380117 , 2111914342 , 2907320982
n×2
40323582
n×3
60485373
n×4
80647164
n×5
100808955
n÷2
10080895.5
n÷3
6720597
n÷3
5040447.75
n÷5
4032358.2
n2
406497816327681
n3
8.1957240147551E+21
n4
1.6524047467917E+29
n5
3.3315439152223E+36
2 √n
4490.1883034011
3 √n
272.17174400859
4 √n
67.008867349039
5 √n
28.900530960968
1 , 9 , 13 , 41 , 81 , 117 , 369 , 467 , 533 , 1053 , 3321 , 4203 , 4797 , 6071 , 19147 , 37827 , 43173 , 54639 , 172323 , 248911 , 491751 , 1550907 , 2240199 , 20161791
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20161790
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20161791 can be divided by 24 positive divisors.
The sum of these divisors (counting 20161791) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1001100111010010011111111
3
Ternary
1101221022210000
4
Quaternary
1030322103333
5
Quinary
20130134131
6
Senary
2000045343
8
Octal
114722377
10
Decimal
20161791
12
Duodecimal
6903853
16
Hexadecimal
133a4ff
20
Vigesimal
66049b
36
Base36
c04xr
md5
3284daa24d0cfbb2ba0b5fc68d77eae8
sha1
5cba81646a30576f9f64f7376b5058bea97a97f7
sha256
1a6b04e659cc36c9d43c942d4c1510fb72b4ce5565986d5cbcbcb5df9fc0e757
sha512
1e6ae295b602f3e111554db57633b941775707b6fc436301b49831f2e5729b5c301882ff680faaa3978e22c5eca25700373e0273cdfc5a6da6a33beeee4ea854
ripemd-160
ebec82d31d40266c798ba5d1de494b0fd9c91b2e
Diameter
40323582
Circumference
126680268.97763
Area
1.2770505534753E+15
Volume
3.4330168474139E+22
Surface area
5.1082022139013E+15
Circumference
126680268.97763
Perimeter
80647164
Area
406497816327681
Diagonal
28513078.273932
Surface area
2438986897966086
Volume
8.1957240147551E+21
Space diagonal
34921246.383585
Perimeter
60485373
Area
1.7601871776134E+14
Altitude
17460623.191792
Surface area
1.7601871776134E+14
Volume
9.6587533792779E+20
Height
9504359.4246439