20108865 is an odd 8-digits composite number following 20108864
and preceding 20108866 . In scientific notation, it is written as 2.0108865 × 10^7.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 9072000 positive integers (up to 20108865) that are relatively prime to 20108865.
20108865 has 16 divisors, whose sum is 23506560
The reverse of 20108865 is 56880102
Previous prime number is 109
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million one hundred eight thousand eight hundred sixty-five
Scientific notation
2.0108865 × 10^7
Engineering notation
2.0108865 × 10^6
Prime Factorization
7 × 105 × 109 × 251
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20108865
Product of the distinct prime numbers
The prime factorization of 20108865 is 7 × 105 × 109 × 251.
Since it has a total of 4 prime factors.
1 , 9 , 18 , 33 , 31 , 97 , 8939 , 8942 , 18313 , 73282 , 924299 , 789591 , 5365666 , 51151 , 34816495 , 79949585 , 618118084 , 142623932 , 8809912729 , 442317975
n×2
40217730
n×3
60326595
n×4
80435460
n×5
100544325
n÷2
10054432.5
n÷3
6702955
n÷3
5027216.25
n÷5
4021773
n2
404366451588225
n3
8.1313503855167E+21
n4
1.6351222717005E+29
n5
3.2880453020119E+36
2 √n
4484.2909138458
3 √n
271.93337919287
4 √n
66.964848344828
5 √n
28.885341852576
1 , 7 , 105 , 109 , 251 , 735 , 763 , 1757 , 11445 , 26355 , 27359 , 80115 , 184485 , 191513 , 2872695 , 20108865
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
-20108864
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 20108865 can be divided by 16 positive divisors.
The sum of these divisors (counting 20108865) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100101101011001000001
3
Ternary
1101211122011210
4
Quaternary
1030231121001
5
Quinary
20121440430
6
Senary
1555000333
8
Octal
114553101
10
Decimal
20108865
12
Duodecimal
68990a9
16
Hexadecimal
132d641
20
Vigesimal
65dc35
36
Base36
bz03l
md5
fa0a2b976533dc6b6f46e43662931ff9
sha1
5fbd8464a9da988044f11528fd32bf5fcd3529f4
sha256
af40ba14c05367ed66c7f7ceeb06b5ea7dd1ced0aded2005da576e6d9e14a4bf
sha512
2622213acc7e8c87975e03c6ec5c2d1fae320fd755c447e57f703877381c573b6d466f1ad60ea3b74ee389cc0fbca99cbcbe214ae3545fd05219b8f1cd4d548d
ripemd-160
5f1a357c6a9b03d3571d0a41a816b8e44675ab05
Diameter
40217730
Circumference
126347725.11206
Area
1.2703546736677E+15
Volume
3.4060520846538E+22
Surface area
5.081418694671E+15
Circumference
126347725.11206
Perimeter
80435460
Area
404366451588225
Diagonal
28438229.60693
Surface area
2426198709529350
Volume
8.1313503855167E+21
Space diagonal
34829575.862544
Perimeter
60326595
Area
1.7509580975679E+14
Altitude
17414787.931272
Surface area
1.7509580975679E+14
Volume
9.5828883296711E+20
Height
9479409.8689766