20105990 is an even 8-digits composite number following 20105989
and preceding 20105991 . In scientific notation, it is written as 2.0105990 × 10^7.
The sum of its digits is 26. It has a total of 5 prime factors and 32 positive divisors.
There are 7096320 positive integers (up to 20105990) that are relatively prime to 20105990.
20105990 has 32 divisors, whose sum is 33372000
The reverse of 20105990 is 09950102
Previous prime number is 19
Is Prime? no
Number parity even
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty million one hundred five thousand nine hundred ninety
Scientific notation
2.0105990 × 10^7
Engineering notation
2.0105990 × 10^6
Prime Factorization
2 × 29 × 205 × 19 × 89
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
20105990
Product of the distinct prime numbers
The prime factorization of 20105990 is 2 × 29 × 205 × 19 × 89.
Since it has a total of 5 prime factors.
10 , 1 , 98 , 89 , 303 , 131 , 5033 , 5326 , 88018 , 60302 , 308020 , 132706 , 7799638 , 8679626 , 40789645 , 17490933 , 261235174 , 603816922 , 4312715297 , 9068354013
n×2
40211980
n×3
60317970
n×4
80423960
n×5
100529950
n÷2
10052995
n÷3
6701996.6666667
n÷3
5026497.5
n÷5
4021198
n2
404250833880100
n3
8.127863223485E+21
n4
1.6341873669276E+29
n5
3.2856954857572E+36
2 √n
4483.9703388849
3 √n
271.92041897646
4 √n
66.962454695784
5 √n
28.884515847652
1 , 2 , 19 , 29 , 38 , 58 , 89 , 178 , 205 , 410 , 551 , 1102 , 1691 , 2581 , 3382 , 3895 , 5162 , 5945 , 7790 , 11890 , 18245 , 36490 , 49039 , 98078 , 112955 , 225910 , 346655 , 529105 , 693310 , 1058210 , 10052995 , 20105990
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20105989
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20105990 can be divided by 32 positive divisors.
The sum of these divisors (counting 20105990) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1001100101100101100000110
3
Ternary
1101211111020022
4
Quaternary
1030230230012
5
Quinary
20121342430
6
Senary
1554535142
8
Octal
114545406
10
Decimal
20105990
12
Duodecimal
68974b2
16
Hexadecimal
132cb06
20
Vigesimal
65d4ja
36
Base36
byxvq
md5
7f3b33dcb1188e4c3eb68c23bce8bf76
sha1
79e1d1570fa971e0b1f5974e784e1da4b337f638
sha256
fb2dcdad82f62cac5cc1074951dfeae7546483527d198173f5880a406751c1f4
sha512
a26904d6e8ee460bb999146f3df4dd5c5e1b774f69d68862fcce82cdc44f3c2de44179a21a4ae768b3f573fa589332d428056628820946a4f80b5f65e2d1c2bc
ripemd-160
363670771b3620896bf3cb2efc9ea8a2c236cd24
Diameter
40211980
Circumference
126329660.9543
Area
1.2699914499253E+15
Volume
3.4045913856377E+22
Surface area
5.0799657997011E+15
Circumference
126329660.9543
Perimeter
80423960
Area
404250833880100
Diagonal
28434163.742938
Surface area
2425505003280600
Volume
8.127863223485E+21
Space diagonal
34824596.216472
Perimeter
60317970
Area
1.750457458206E+14
Altitude
17412298.108236
Surface area
1.750457458206E+14
Volume
9.5787786698049E+20
Height
9478054.5809793