1998706988 is an even 10-digits composite number following 1998706987
and preceding 1998706989 . In scientific notation, it is written as 1.998706988 × 10^9.
The sum of its digits is 65. It has a total of 3 prime factors and 6 positive divisors.
There are 999353492 positive integers (up to 1998706988) that are relatively prime to 1998706988.
1998706988 has 6 divisors, whose sum is 3497737236
The reverse of 1998706988 is 8896078991
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 seven hundred six thousand nine hundred eighty-eight
Scientific notation
1.998706988 × 10^9
Engineering notation
1.998706988 × 10^9
Prime Factorization
2 × 2 × 499676747
Composite number
ω Distinct Factors
2 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
999353494 Product of the distinct prime numbers
The prime factorization of 1998706988 is 2 × 2 × 499676747.
Since it has a total of 3 prime factors.
9 , 6 , 36 , 18 , 253 , 17 , 7733 , 6450 , 59266 , 28883 , 737795 , 437267 , 5725613 , 2546634 , 89735661 , 60305062 , 805234788 , 513497016 , 5285524123 , 4153366320
n×2
3997413976
n×3
5996120964
n×4
7994827952
n×5
9993534940
n÷2
999353494
n÷3
666235662.66667
n÷3
499676747
n÷5
399741397.6
n2
3994829623880032144
n3
7.9844938851184E+27
n4
1.5958663723829E+37
n5
3.189669270396E+46
2 √n44706.900899078
3 √n1259.6494758556
4 √n211.44006455513
5 √n72.468592455315
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
-1998706987 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 1998706988 can be divided by 6 positive divisors.
The sum of these divisors (counting 1998706988) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1110111001000011101100100101100
3
Ternary
12011021220211112202
4
Quaternary
1313020131210230
5
Quinary
13043132110423
6
Senary
530155121032
8
Octal
16710354454
10
Decimal
1998706988
12
Duodecimal
479443178
16
Hexadecimal
7721d92c
20
Vigesimal
1b4bi798
36
Base36
x1z86k
md5
ac00c25c85b6d01e09ebeddfdf8455b7
sha1
d60dc0e0b3837735bcf8e632d846a456114e77a1
sha256
5dadc22f21f82928323e61b46f449c25e7004637acfc8805089a1b6eaf49404a
sha512
8ede9cc5ce134e5173820783f339731c3d0292e271e86bfacd8e4d39f0208905e0139b55ba52f2364470472fd415bf912472607e8525f1c1ce325a2eb9414211
ripemd-160
0565281f64604ec33f943deb0cada04b2c512a53
Diameter
3997413976
Circumference
12558246380.359
Area
1.2550127398724E+19
Volume
3.3445369776161E+28
Surface area
5.0200509594898E+19
Circumference
12558246380.359
Perimeter
7994827952
Area
3994829623880032144
Diagonal
2826598529.6395
Surface area
2.396897774328E+19
Volume
7.9844938851184E+27
Space diagonal
3461862052.659
Perimeter
5996120964
Area
1.7298119690354E+18
Altitude
1730931026.3295
Surface area
1.7298119690354E+18
Volume
9.4098162841829E+26
Height
942199509.87983