1998454986 is an even 10-digits composite number following 1998454985
and preceding 1998454987 . In scientific notation, it is written as 1.998454986 × 10^9.
The sum of its digits is 63. It has a total of 4 prime factors and 16 positive divisors.
There are 601227360 positive integers (up to 1998454986) that are relatively prime to 1998454986.
1998454986 has 16 divisors, whose sum is 3049788000
The reverse of 1998454986 is 6894548991
Previous prime number is 139
Is Prime? no Number parity even Number length 10 Sum of Digits 63 Digital Root 9
Name
one billion nine hundred ninety-eight million four hundred fifty-four thousand nine hundred eighty-six
Scientific notation
1.998454986 × 10^9
Engineering notation
1.998454986 × 10^9
Prime Factorization
2 × 99 × 139 × 72613
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
1998454986 Product of the distinct prime numbers
The prime factorization of 1998454986 is 2 × 99 × 139 × 72613.
Since it has a total of 4 prime factors.
4 , 7 , 24 , 70 , 810 , 356 , 2504 , 7625 , 78396 , 99456 , 949286 , 516789 , 7388617 , 9213171 , 69825226 , 74661640 , 124863038 , 209552358 , 258669813 , 9894705948
n×2
3996909972
n×3
5995364958
n×4
7993819944
n×5
9992274930
n÷2
999227493
n÷3
666151662
n÷3
499613746.5
n÷5
399690997.2
n2
3993822331068260196
n3
7.9814741507215E+27
n4
1.595061681214E+37
n5
3.1876589697996E+46
2 √n44704.082431026
3 √n1259.5965337067
4 √n211.43339951632
5 √n72.466764958695
1 , 2 , 99 , 139 , 198 , 278 , 13761 , 27522 , 72613 , 145226 , 7188687 , 10093207 , 14377374 , 20186414 , 999227493 , 1998454986
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
-1998454985 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 1998454986 can be divided by 16 positive divisors.
The sum of these divisors (counting 1998454986) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1110111000111100000000011001010
3
Ternary
12011021110000212100
4
Quaternary
1313013200003022
5
Quinary
13043101024421
6
Senary
530145454230
8
Octal
16707400312
10
Decimal
1998454986
12
Duodecimal
479341376
16
Hexadecimal
771e00ca
20
Vigesimal
1b4a6h96
36
Base36
x1ttqi
md5
bd7525012fcec0776f4c25f4fae1a61e
sha1
65605eec8e621f9b76b2e281091ee6bb761f6f36
sha256
d5507065644b021837477b8669dd5d1b6e7e2121fbc9c1436d5df436d6e918bf
sha512
9c26521a2d98bb95f569dec4176d166b33064f3198045c2a71c6de515570a0d64951678963d2c3920affddc71fa048c00a91529cc90ba8b54915efaeb8c93e63
ripemd-160
82d2d93144b5812db77f36ee11f1861a7614f42b
Diameter
3996909972
Circumference
12556663005.095
Area
1.2546962895027E+19
Volume
3.3432720742298E+28
Surface area
5.0187851580108E+19
Circumference
12556663005.095
Perimeter
7993819944
Area
3993822331068260196
Diagonal
2826242144.9933
Surface area
2.396293398641E+19
Volume
7.9814741507215E+27
Space diagonal
3461425572.3913
Perimeter
5995364958
Area
1.7293757984533E+18
Altitude
1730712786.1957
Surface area
1.7293757984533E+18
Volume
9.4062574930672E+26
Height
942080714.99778