1998706989 is an odd 10-digits composite number following 1998706988
and preceding 1998706990 . In scientific notation, it is written as 1.998706989 × 10^9.
The sum of its digits is 66. It has a total of 3 prime factors and 8 positive divisors.
There are 1289488320 positive integers (up to 1998706989) that are relatively prime to 1998706989.
1998706989 has 8 divisors, whose sum is 2750908672
The reverse of 1998706989 is 9896078991
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 66
Digital Root 3
Name
one billion nine hundred ninety-eight million seven hundred six thousand nine hundred eighty-nine
Scientific notation
1.998706989 × 10^9
Engineering notation
1.998706989 × 10^9
Prime Factorization
3 × 31 × 21491473
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1998706989
Product of the distinct prime numbers
The prime factorization of 1998706989 is 3 × 31 × 21491473.
Since it has a total of 3 prime factors.
9 , 3 , 94 , 9 , 501 , 258 , 9772 , 9376 , 99564 , 69361 , 137701 , 796392 , 8100247 , 3825358 , 3530746 , 2077851 , 317927694 , 372265368 , 3390367577 , 7360182254
n×2
3997413978
n×3
5996120967
n×4
7994827956
n×5
9993534945
n÷2
999353494.5
n÷3
666235663
n÷3
499676747.25
n÷5
399741397.8
n2
3994829627877446121
n3
7.9844938971029E+27
n4
1.5958663755767E+37
n5
3.1896692783753E+46
2 √n
44706.900910262
3 √n
1259.6494760657
4 √n
211.44006458158
5 √n
72.468592462566
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1998706988
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1998706989 can be divided by 8 positive divisors.
The sum of these divisors (counting 1998706989) is 1, the average is 0.125.
Base
System
Value
2
Binary
1110111001000011101100100101101
3
Ternary
12011021220211112210
4
Quaternary
1313020131210231
5
Quinary
13043132110424
6
Senary
530155121033
8
Octal
16710354455
10
Decimal
1998706989
12
Duodecimal
479443179
16
Hexadecimal
7721d92d
20
Vigesimal
1b4bi799
36
Base36
x1z86l
md5
3e8cc51b675a5d75aea1337e65d9be8d
sha1
4c1f76941a8e163f862ccb4fdc36f4cf8112aa36
sha256
75f5e637613f6dc90c0cefa65532370c8d1301b67756a8d0135bc21bdc92d565
sha512
6b0d25b63d73193dbafb58c77c05d243c8b5b8ca231aadf9281dc3e5991bb03f9400c65132c4167c2b784216d086a704ff71818ac0b6ee888ebe98795b86ef43
ripemd-160
6005a0500fbabd74b52801d8970e391ee445b1db
Diameter
3997413978
Circumference
12558246386.642
Area
1.2550127411283E+19
Volume
3.3445369826361E+28
Surface area
5.0200509645131E+19
Circumference
12558246386.642
Perimeter
7994827956
Area
3994829627877446121
Diagonal
2826598531.0537
Surface area
2.3968977767265E+19
Volume
7.9844938971029E+27
Space diagonal
3461862054.391
Perimeter
5996120967
Area
1.7298119707663E+18
Altitude
1730931027.1955
Surface area
1.7298119707663E+18
Volume
9.4098162983068E+26
Height
942199510.35123