1998454988 is an even 10-digits composite number following 1998454987
and preceding 1998454989 . In scientific notation, it is written as 1.998454988 × 10^9.
The sum of its digits is 65. It has a total of 3 prime factors and 6 positive divisors.
There are 999227492 positive integers (up to 1998454988) that are relatively prime to 1998454988.
1998454988 has 6 divisors, whose sum is 3497296236
The reverse of 1998454988 is 8894548991
Previous prime number is 2
Is Prime? no Number parity even Number length 10 Sum of Digits 65 Digital Root 2
Name
one billion nine hundred ninety-eight million four hundred fifty-four thousand nine hundred eighty-eight
Scientific notation
1.998454988 × 10^9
Engineering notation
1.998454988 × 10^9
Prime Factorization
2 × 2 × 499613747
Composite number
ω Distinct Factors
2 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
999227494 Product of the distinct prime numbers
The prime factorization of 1998454988 is 2 × 2 × 499613747.
Since it has a total of 3 prime factors.
7 , 3 , 49 , 47 , 494 , 185 , 8246 , 9060 , 91086 , 19631 , 687696 , 688847 , 7708071 , 7491310 , 20023193 , 16091644 , 586901083 , 213514197 , 2065157018 , 6980102322
n×2
3996909976
n×3
5995364964
n×4
7993819952
n×5
9992274940
n÷2
999227494
n÷3
666151662.66667
n÷3
499613747
n÷5
399690997.6
n2
3993822339062080144
n3
7.9814741746844E+27
n4
1.5950616875991E+37
n5
3.1876589857502E+46
2 √n44704.082453396
3 √n1259.5965341269
4 √n211.43339956922
5 √n72.466764973199
6 divisors
τ Total Divisors
6 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-1998454987 Sum of the proper positive divisors of n
A Arithmetic Mean
0.16666666666667 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
6 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1998454988 can be divided by 6 positive divisors.
The sum of these divisors (counting 1998454988) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1110111000111100000000011001100
3
Ternary
12011021110000212102
4
Quaternary
1313013200003030
5
Quinary
13043101024423
6
Senary
530145454232
8
Octal
16707400314
10
Decimal
1998454988
12
Duodecimal
479341378
16
Hexadecimal
771e00cc
20
Vigesimal
1b4a6h98
36
Base36
x1ttqk
md5
2429d55c3591a24a907f054568052478
sha1
db83885dc6187227f9bbc6a8511acdabbd0916aa
sha256
9e36ff92973cfeb77aaa00be5c91597eb0b3be537e22f454437934dfe0d55043
sha512
c26b82f9a525094fa748e2e1cab5cfd1418ef74c0fbbe967231378b7c98005df14ad346ecf9ca46e83a6bb1efdf527090780e6024ee4c4c8dffc798c1b2aeaf6
ripemd-160
9f591276dfa23cf851fa2190e67f726135f396b1
Diameter
3996909976
Circumference
12556663017.661
Area
1.254696292014E+19
Volume
3.3432720842674E+28
Surface area
5.0187851680561E+19
Circumference
12556663017.661
Perimeter
7993819952
Area
3993822339062080144
Diagonal
2826242147.8218
Surface area
2.3962934034372E+19
Volume
7.9814741746844E+27
Space diagonal
3461425575.8555
Perimeter
5995364964
Area
1.7293758019148E+18
Altitude
1730712787.9277
Surface area
1.7293758019148E+18
Volume
9.4062575213078E+26
Height
942080715.94059