1990644849 is an odd 10-digits composite number following 1990644848
and preceding 1990644850 . In scientific notation, it is written as 1.990644849 × 10^9.
The sum of its digits is 54. It has a total of 4 prime factors and 16 positive divisors.
There are 1326778128 positive integers (up to 1990644849) that are relatively prime to 1990644849.
1990644849 has 16 divisors, whose sum is 2949811200
The reverse of 1990644849 is 9484460991
Previous prime number is 6719
Is Prime? no Number parity odd Number length 10 Sum of Digits 54 Digital Root 9
Name
one billion nine hundred ninety million six hundred forty-four thousand eight hundred forty-nine
Scientific notation
1.990644849 × 10^9
Engineering notation
1.990644849 × 10^9
Prime Factorization
9 × 3 × 6719 × 10973
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
1990644849 Product of the distinct prime numbers
The prime factorization of 1990644849 is 9 × 3 × 6719 × 10973.
Since it has a total of 4 prime factors.
5 , 1 , 28 , 11 , 627 , 565 , 774 , 585 , 26701 , 92296 , 680434 , 435517 , 9544360 , 3717010 , 42824683 , 164668 , 483385105 , 196100358 , 780828165 , 7590551994
n×2
3981289698
n×3
5971934547
n×4
7962579396
n×5
9953224245
n÷2
995322424.5
n÷3
663548283
n÷3
497661212.25
n÷5
398128969.8
n2
3962666914850232801
n3
7.8882624823493E+27
n4
1.5702729078049E+37
n5
3.125855675446E+46
2 √n44616.643183906
3 √n1257.9535203309
4 √n211.22652102401
5 √n72.410034914831
1 , 3 , 9 , 27 , 6719 , 10973 , 20157 , 32919 , 60471 , 98757 , 181413 , 296271 , 73727587 , 221182761 , 663548283 , 1990644849
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
-1990644848 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 1990644849 can be divided by 16 positive divisors.
The sum of these divisors (counting 1990644849) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1110110101001101101010001110001
3
Ternary
12010201202020101000
4
Quaternary
1312221231101301
5
Quinary
13034101113344
6
Senary
525310232213
8
Octal
16651552161
10
Decimal
1990644849
12
Duodecimal
4767b5669
16
Hexadecimal
76a6d471
20
Vigesimal
1b21ac29
36
Base36
wx6fe9
md5
20e2ce30087bb37ba15162f8fe7bb894
sha1
cbf36f091c7fb4c7109c5b37509c837a117b90e6
sha256
798554aac10a48565d091c2256949e26f98142fb856498fff3df895fb944e0cd
sha512
f6483e0a2a8affaa0f0278ba6f6c0678fe7c5cfd53641286dfd4a07c3dc3be81c24bfbfee73ce7688de9fbb993b5486990b3747a65fcbb74fec259c4d871bf84
ripemd-160
c104ec963c4f29f1bf19f64a3d75484cd2dc1690
Diameter
3981289698
Circumference
12507590467.05
Area
1.2449085268317E+19
Volume
3.3042276618849E+28
Surface area
4.9796341073267E+19
Circumference
12507590467.05
Perimeter
7962579396
Area
3962666914850232801
Diagonal
2815196943.3239
Surface area
2.3776001489101E+19
Volume
7.8882624823493E+27
Space diagonal
3447898018.2933
Perimeter
5971934547
Area
1.7158851074982E+18
Altitude
1723949009.1466
Surface area
1.7158851074982E+18
Volume
9.2964064884144E+26
Height
938398981.10798