1998744998 is an even 10-digits composite number following 1998744997
and preceding 1998744999 . In scientific notation, it is written as 1.998744998 × 10^9.
The sum of its digits is 68. It has a total of 4 prime factors and 16 positive divisors.
There are 961262400 positive integers (up to 1998744998) that are relatively prime to 1998744998.
1998744998 has 16 divisors, whose sum is 3114508320
The reverse of 1998744998 is 8994478991
Previous prime number is 71
Is Prime? no Number parity even Number length 10 Sum of Digits 68 Digital Root 5
Name
one billion nine hundred ninety-eight million seven hundred forty-four thousand nine hundred ninety-eight
Scientific notation
1.998744998 × 10^9
Engineering notation
1.998744998 × 10^9
Prime Factorization
2 × 41 × 71 × 343309
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
1998744998 Product of the distinct prime numbers
The prime factorization of 1998744998 is 2 × 41 × 71 × 343309.
Since it has a total of 4 prime factors.
3 , 4 , 86 , 32 , 901 , 437 , 7588 , 3593 , 25846 , 63084 , 209699 , 89248 , 4797772 , 2109484 , 22626748 , 61931147 , 974687998 , 836176024 , 5468048243 , 2259575264
n×2
3997489996
n×3
5996234994
n×4
7994979992
n×5
9993724990
n÷2
999372499
n÷3
666248332.66667
n÷3
499686249.5
n÷5
399748999.6
n2
3994981567030020004
n3
7.9849494242035E+27
n4
1.595987772091E+37
n5
3.189972576336E+46
2 √n44707.325999214
3 √n1259.6574608468
4 √n211.44106980247
5 √n72.468868084535
1 , 2 , 41 , 71 , 82 , 142 , 2911 , 5822 , 343309 , 686618 , 14075669 , 24374939 , 28151338 , 48749878 , 999372499 , 1998744998
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
-1998744997 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 1998744998 can be divided by 16 positive divisors.
The sum of these divisors (counting 1998744998) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1110111001000100110110110100110
3
Ternary
12011021222202200112
4
Quaternary
1313020212312212
5
Quinary
13043134314443
6
Senary
530200013022
8
Octal
16710466646
10
Decimal
1998744998
12
Duodecimal
479461172
16
Hexadecimal
77226da6
20
Vigesimal
1b4c329i
36
Base36
x201ie
md5
69b85b4271ab42fc49fec65109236ec3
sha1
ac0a5edfe7c568c9ed19071bec27cb44425a7302
sha256
cae567a5da11a64f982bcc24c798a34165de00d81b73b386fc3f0ea1de807c7e
sha512
1e9c872e815fda73348c6a90c117282f7f61bf9159c3248a63fa3c69083c5341578da397cce738c89cd1b7f7a63f708f78eb755e4dc6db15f408108b05cf0f31
ripemd-160
7a6d328ac9e9f831f60098745eedf854703a4bcf
Diameter
3997489996
Circumference
12558485204.232
Area
1.2550604742208E+19
Volume
3.3447277933818E+28
Surface area
5.0202418968833E+19
Circumference
12558485204.232
Perimeter
7994979992
Area
3994981567030020004
Diagonal
2826652283.897
Surface area
2.396988940218E+19
Volume
7.9849494242035E+27
Space diagonal
3461927887.9102
Perimeter
5996234994
Area
1.7298777623493E+18
Altitude
1730963943.9551
Surface area
1.7298777623493E+18
Volume
9.4103531421431E+26
Height
942217427.96566