20105890 is an even 8-digits composite number following 20105889
and preceding 20105891 . In scientific notation, it is written as 2.0105890 × 10^7.
The sum of its digits is 25. It has a total of 5 prime factors and 32 positive divisors.
There are 6865344 positive integers (up to 20105890) that are relatively prime to 20105890.
20105890 has 32 divisors, whose sum is 41529600
The reverse of 20105890 is 09850102
Previous prime number is 349
Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million one hundred five thousand eight hundred ninety
Scientific notation
2.0105890 × 10^7
Engineering notation
2.0105890 × 10^6
Prime Factorization
2 × 7 × 5 × 349 × 823
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
20105890
Product of the distinct prime numbers
The prime factorization of 20105890 is 2 × 7 × 5 × 349 × 823.
Since it has a total of 5 prime factors.
9 , 3 , 19 , 85 , 673 , 277 , 8693 , 339 , 42899 , 57106 , 12764 , 160737 , 6957873 , 9210444 , 17291732 , 50696794 , 651951806 , 415301680 , 4417130818 , 3804860154
n×2
40211780
n×3
60317670
n×4
80423560
n×5
100529450
n÷2
10052945
n÷3
6701963.3333333
n÷3
5026472.5
n÷5
4021178
n2
404246812692100
n3
8.127741948838E+21
n4
1.6341548557172E+29
n5
3.2856137772016E+36
2 √n
4483.9591880391
3 √n
271.91996816409
4 √n
66.962371433807
5 √n
28.884487115346
1 , 2 , 5 , 7 , 10 , 14 , 35 , 70 , 349 , 698 , 823 , 1646 , 1745 , 2443 , 3490 , 4115 , 4886 , 5761 , 8230 , 11522 , 12215 , 24430 , 28805 , 57610 , 287227 , 574454 , 1436135 , 2010589 , 2872270 , 4021178 , 10052945 , 20105890
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
-20105889
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 20105890 can be divided by 32 positive divisors.
The sum of these divisors (counting 20105890) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1001100101100101010100010
3
Ternary
1101211111002121
4
Quaternary
1030230222202
5
Quinary
20121342030
6
Senary
1554534454
8
Octal
114545242
10
Decimal
20105890
12
Duodecimal
689742a
16
Hexadecimal
132caa2
20
Vigesimal
65d4ea
36
Base36
byxsy
md5
8843a2894b5887de9a4d93a6eb40e853
sha1
9aa573fc4031eb312ab54d10482dbd803ac7ad9f
sha256
b78df5510cd67626bc156b9b83d238ccbb312a88bcab0497551b127c5faf12f3
sha512
8a16ce808129861692f4bd328aa5de299e189facb7174392b2f63e26055c176a8915735dd61ef8b3cba6e6cb81bb595502c32377cc30080170a8f2fd311627ef
ripemd-160
1e082d2265b3feb7774c6d1ea145a8adbe8749f0
Diameter
40211780
Circumference
126329032.63577
Area
1.2699788169906E+15
Volume
3.4045405862324E+22
Surface area
5.0799152679624E+15
Circumference
126329032.63577
Perimeter
80423560
Area
404246812692100
Diagonal
28434022.321582
Surface area
2425480876152600
Volume
8.127741948838E+21
Space diagonal
34824423.011391
Perimeter
60317670
Area
1.7504400459512E+14
Altitude
17412211.505696
Surface area
1.7504400459512E+14
Volume
9.5786357462628E+20
Height
9478007.4405272