20165991 is an odd 8-digits composite number following 20165990
and preceding 20165992 . In scientific notation, it is written as 2.0165991 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 12902400 positive integers (up to 20165991) that are relatively prime to 20165991.
20165991 has 16 divisors, whose sum is 27982560
The reverse of 20165991 is 19956102
Previous prime number is 193
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million one hundred sixty-five thousand nine hundred ninety-one
Scientific notation
2.0165991 × 10^7
Engineering notation
2.0165991 × 10^6
Prime Factorization
3 × 29 × 193 × 1201
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20165991
Product of the distinct prime numbers
The prime factorization of 20165991 is 3 × 29 × 193 × 1201.
Since it has a total of 4 prime factors.
2 , 5 , 75 , 72 , 152 , 141 , 6631 , 3508 , 88242 , 75200 , 956051 , 402430 , 7877418 , 4893002 , 93850871 , 36525454 , 4904956 , 450559936 , 5238239302 , 6962739275
n×2
40331982
n×3
60497973
n×4
80663964
n×5
100829955
n÷2
10082995.5
n÷3
6721997
n÷3
5041497.75
n÷5
4033198.2
n2
406667193012081
n3
8.2008469542769E+21
n4
1.6537820587233E+29
n5
3.3350154112175E+36
2 √n
4490.6559654465
3 √n
272.19064183299
4 √n
67.01235681161
5 √n
28.901734942469
1 , 3 , 29 , 87 , 193 , 579 , 1201 , 3603 , 5597 , 16791 , 34829 , 104487 , 231793 , 695379 , 6721997 , 20165991
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
-20165990
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 20165991 can be divided by 16 positive divisors.
The sum of these divisors (counting 20165991) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100111011010101100111
3
Ternary
1101221112112120
4
Quaternary
1030323111213
5
Quinary
20130302431
6
Senary
2000121023
8
Octal
114732547
10
Decimal
20165991
12
Duodecimal
6906173
16
Hexadecimal
133b567
20
Vigesimal
660ejb
36
Base36
c086f
md5
1509feb77cd0129e8285d05c0c1f6b5b
sha1
3b95921b345aed12ab8bf3ec694430c3c04ee05d
sha256
5a2e14349afd1d36394603840d4119049a0ede96bba1eec029777bef08b5ff08
sha512
6f270cbcfeb7def7129ad90beead0c7bbe1174215a934f9c7e1b3f3ac0aeda7c110acea9e5cc5bd5685bac9abb9ed37e93e315d85786ea6c2cd67347427638e0
ripemd-160
3e9786e0e6ce5b2441260d8aa2a0697cddf8e6a6
Diameter
40331982
Circumference
126706658.35592
Area
1.2775826660227E+15
Volume
3.4351627393027E+22
Surface area
5.1103306640909E+15
Circumference
126706658.35592
Perimeter
80663964
Area
406667193012081
Diagonal
28519017.970894
Surface area
2440003158072486
Volume
8.2008469542769E+21
Space diagonal
34928520.996977
Perimeter
60497973
Area
1.7609206001709E+14
Altitude
17464260.498488
Surface area
1.7609206001709E+14
Volume
9.6647908214037E+20
Height
9506339.3236313