1990705587 is an odd 10-digits composite number following 1990705586
and preceding 1990705588 . In scientific notation, it is written as 1.990705587 × 10^9.
The sum of its digits is 51. It has a total of 4 prime factors and 12 positive divisors.
There are 1225049280 positive integers (up to 1990705587) that are relatively prime to 1990705587.
1990705587 has 12 divisors, whose sum is 2874155544
The reverse of 1990705587 is 7855070991
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 51
Digital Root 6
Name
one billion nine hundred ninety million seven hundred five thousand five hundred eighty-seven
Scientific notation
1.990705587 × 10^9
Engineering notation
1.990705587 × 10^9
Prime Factorization
3 × 13 × 13 × 3926441
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
153131199
Product of the distinct prime numbers
The prime factorization of 1990705587 is 3 × 13 × 13 × 3926441.
Since it has a total of 4 prime factors.
1 , 10 , 27 , 44 , 455 , 806 , 5109 , 3612 , 85690 , 52169 , 468437 , 214874 , 3804921 , 6353318 , 2957794 , 28048916 , 513646884 , 963745692 , 4435949731 , 9076679786
n×2
3981411174
n×3
5972116761
n×4
7962822348
n×5
9953527935
n÷2
995352793.5
n÷3
663568529
n÷3
497676396.75
n÷5
398141117.4
n2
3962908734113014569
n3
7.8889845577699E+27
n4
1.5704645634909E+37
n5
3.1263325807269E+46
2 √n
44617.323843996
3 √n
1257.9663143097
4 √n
211.22813222674
5 √n
72.410476780393
1 , 3 , 13 , 39 , 169 , 507 , 3926441 , 11779323 , 51043733 , 153131199 , 663568529 , 1990705587
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1990705586
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1990705587 can be divided by 12 positive divisors.
The sum of these divisors (counting 1990705587) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1110110101001111100000110110011
3
Ternary
12010201212022200120
4
Quaternary
1312221330012303
5
Quinary
13034110034322
6
Senary
525311421323
8
Octal
16651740663
10
Decimal
1990705587
12
Duodecimal
476824843
16
Hexadecimal
76a7c1b3
20
Vigesimal
1b21i3j7
36
Base36
wx7q9f
md5
6ffc6b379bc39ff83eb5c16f80bb8f7a
sha1
ac103d652f5afca4de664cdea7a02f55bf1a035e
sha256
23da78c40873e979600b66c45800161fee4dfcb3488ae9d6f5b1c3a73875b5e6
sha512
77b51dc937043166ffae3c5a85ec7b2addc1c4c148f3fcbbe465100477e73dcb744c83551d545452ced1615f88faf0c16e3091b88213e343905e0dbef1907397
ripemd-160
a51fc0402ad3e29acefbddad07a700785c41155a
Diameter
3981411174
Circumference
12507972095.159
Area
1.2449844965936E+19
Volume
3.3045301241298E+28
Surface area
4.9799379863745E+19
Circumference
12507972095.159
Perimeter
7962822348
Area
3962908734113014569
Diagonal
2815282839.8273
Surface area
2.3777452404678E+19
Volume
7.8889845577699E+27
Space diagonal
3448003219.5952
Perimeter
5972116761
Area
1.7159898183106E+18
Altitude
1724001609.7976
Surface area
1.7159898183106E+18
Volume
9.2972574624584E+26
Height
938427613.27576