1990644943 is an odd 10-digits composite number following 1990644942
and preceding 1990644944 . In scientific notation, it is written as 1.990644943 × 10^9.
The sum of its digits is 49. It has a total of 5 prime factors and 24 positive divisors.
There are 1646568000 positive integers (up to 1990644943) that are relatively prime to 1990644943.
1990644943 has 24 divisors, whose sum is 2397093504
The reverse of 1990644943 is 3494460991
Previous prime number is 397
Is Prime? no Number parity odd Number length 10 Sum of Digits 49 Digital Root 4
Name
one billion nine hundred ninety million six hundred forty-four thousand nine hundred forty-three
Scientific notation
1.990644943 × 10^9
Engineering notation
1.990644943 × 10^9
Prime Factorization
7 × 31 × 7 × 397 × 3301
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
5 Total number of prime factors
rad Radical
284377849 Product of the distinct prime numbers
The prime factorization of 1990644943 is 7 × 31 × 7 × 397 × 3301.
Since it has a total of 5 prime factors.
7 , 8 , 44 , 30 , 353 , 338 , 8276 , 5931 , 87536 , 82043 , 915113 , 174139 , 2212148 , 2471107 , 21498501 , 87107666 , 333179984 , 572578878 , 8559698512 , 962525204
n×2
3981289886
n×3
5971934829
n×4
7962579772
n×5
9953224715
n÷2
995322471.5
n÷3
663548314.33333
n÷3
497661235.75
n÷5
398128988.6
n2
3962667289091473249
n3
7.8882635998215E+27
n4
1.5702732044036E+37
n5
3.1258564134743E+46
2 √n44616.644237325
3 √n1257.9535401315
4 √n211.22652351758
5 √n72.410035598684
1 , 7 , 31 , 49 , 217 , 397 , 1519 , 2779 , 3301 , 12307 , 19453 , 23107 , 86149 , 102331 , 161749 , 603043 , 716317 , 1310497 , 5014219 , 9173479 , 40625407 , 64214353 , 284377849 , 1990644943
24 divisors
τ Total Divisors
24 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-1990644942 Sum of the proper positive divisors of n
A Arithmetic Mean
0.041666666666667 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
24 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1990644943 can be divided by 24 positive divisors.
The sum of these divisors (counting 1990644943) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1110110101001101101010011001111
3
Ternary
12010201202020111111
4
Quaternary
1312221231103033
5
Quinary
13034101114233
6
Senary
525310232451
8
Octal
16651552317
10
Decimal
1990644943
12
Duodecimal
4767b5727
16
Hexadecimal
76a6d4cf
20
Vigesimal
1b21ac73
36
Base36
wx6fgv
md5
3100af63074f2183e47b4e53fb2f99d0
sha1
bb7bacc3ec3c17934035aa8a81a714d6ebb7dd44
sha256
adf4a62f25ae940a802345dfccf353bcc3558a4828fe5e26ab60c8581e8dfe20
sha512
7035f3a7eefc1ad2fad58dc7f1d8890042c667ff746296283ce7a6c877c5cb7779a55738f2ff67c5049df0cf312933cdb2a4b481d3cca865afb9b61efa328549
ripemd-160
1402ebaee32cff049d1f2cab1d2463badd34c22b
Diameter
3981289886
Circumference
12507591057.669
Area
1.244908644403E+19
Volume
3.3042281299705E+28
Surface area
4.9796345776121E+19
Circumference
12507591057.669
Perimeter
7962579772
Area
3962667289091473249
Diagonal
2815197076.26
Surface area
2.3776003734549E+19
Volume
7.8882635998215E+27
Space diagonal
3447898181.1061
Perimeter
5971934829
Area
1.7158852695494E+18
Altitude
1723949090.553
Surface area
1.7158852695494E+18
Volume
9.2964078053679E+26
Height
938399025.42001