20165891 is an odd 8-digits composite number following 20165890
and preceding 20165892 . In scientific notation, it is written as 2.0165891 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 19674000 positive integers (up to 20165891) that are relatively prime to 20165891.
20165891 has 4 divisors, whose sum is 20657784
The reverse of 20165891 is 19856102
Previous prime number is 41
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million one hundred sixty-five thousand eight hundred ninety-one
Scientific notation
2.0165891 × 10^7
Engineering notation
2.0165891 × 10^6
Prime Factorization
41 × 491851
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20165891
Product of the distinct prime numbers
The prime factorization of 20165891 is 41 × 491851.
Since it has a total of 2 prime factors.
1 , 10 , 21 , 81 , 94 , 462 , 5213 , 6805 , 85636 , 58895 , 761340 , 811881 , 5724349 , 1513360 , 14094195 , 98056975 , 55882785 , 85153165 , 3503628277 , 1864887167
n×2
40331782
n×3
60497673
n×4
80663564
n×5
100829455
n÷2
10082945.5
n÷3
6721963.6666667
n÷3
5041472.75
n÷5
4033178.2
n2
406663159823881
n3
8.200724954724E+21
n4
1.6537492555794E+29
n5
3.3349327229346E+36
2 √n
4490.6448312019
3 √n
272.19019191528
4 √n
67.012273735502
5 √n
28.901706278574
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
-20165890
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 20165891 can be divided by 4 positive divisors.
The sum of these divisors (counting 20165891) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100111011010100000011
3
Ternary
1101221112101212
4
Quaternary
1030323110003
5
Quinary
20130302031
6
Senary
2000120335
8
Octal
114732403
10
Decimal
20165891
12
Duodecimal
69060ab
16
Hexadecimal
133b503
20
Vigesimal
660eeb
36
Base36
c083n
md5
a65ee4feb72ab10d5ccecf3fbb41ac24
sha1
61d4693bece5c6be25737bbb211163253ab7b2bc
sha256
970548affca666295fe7548617ca461f45c2987bff9da6526ab6c36ea63c2d9c
sha512
4223415b8b08494ec0f67d6e986c9b0029dc55a8c2ea499ecf4c2753f1c35c2fda94d0aed17e55206875bb1cee3fe5b41b078d53457dd55d4cfef768113b3c54
ripemd-160
932989f75bdf1cddec3aa383891df2fcb5c37fc6
Diameter
40331782
Circumference
126706030.03739
Area
1.2775699953883E+15
Volume
3.4351116362495E+22
Surface area
5.1102799815533E+15
Circumference
126706030.03739
Perimeter
80663564
Area
406663159823881
Diagonal
28518876.549538
Surface area
2439978958943286
Volume
8.200724954724E+21
Space diagonal
34928347.791896
Perimeter
60497673
Area
1.7609031359537E+14
Altitude
17464173.895948
Surface area
1.7609031359537E+14
Volume
9.6646470435518E+20
Height
9506292.1831792