1998999729 is an odd 10-digits composite number following 1998999728
and preceding 1998999730 . In scientific notation, it is written as 1.998999729 × 10^9.
The sum of its digits is 72. It has a total of 5 prime factors and 20 positive divisors.
There are 1331980416 positive integers (up to 1998999729) that are relatively prime to 1998999729.
1998999729 has 20 divisors, whose sum is 2987697636
The reverse of 1998999729 is 9279998991
Previous prime number is 2393
Is Prime? no Number parity odd Number length 10 Sum of Digits 72 Digital Root 9
Name
one billion nine hundred ninety-eight million nine hundred ninety-nine thousand seven hundred twenty-nine
Scientific notation
1.998999729 × 10^9
Engineering notation
1.998999729 × 10^9
Prime Factorization
9 × 3 × 3 × 2393 × 10313
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
5 Total number of prime factors
rad Radical
666333243 Product of the distinct prime numbers
The prime factorization of 1998999729 is 9 × 3 × 3 × 2393 × 10313.
Since it has a total of 5 prime factors.
10 , 1 , 88 , 30 , 28 , 173 , 7520 , 5091 , 39538 , 86561 , 59020 , 898507 , 3260247 , 5016220 , 4751367 , 75423858 , 928970096 , 384764892 , 8355996288 , 8706587185
n×2
3997999458
n×3
5996999187
n×4
7995998916
n×5
9994998645
n÷2
999499864.5
n÷3
666333243
n÷3
499749932.25
n÷5
399799945.8
n2
3995999916542073441
n3
7.9880027502516E+27
n4
1.5968015333004E+37
n5
3.1920058323343E+46
2 √n44710.174781586
3 √n1259.7109711203
4 √n211.44780628227
5 √n72.470715156199
1 , 3 , 9 , 27 , 81 , 2393 , 7179 , 10313 , 21537 , 30939 , 64611 , 92817 , 193833 , 278451 , 835353 , 24679009 , 74037027 , 222111081 , 666333243 , 1998999729
20 divisors
τ Total Divisors
20 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-1998999728 Sum of the proper positive divisors of n
A Arithmetic Mean
0.05 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
20 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1998999729 can be divided by 20 positive divisors.
The sum of these divisors (counting 1998999729) is 1, the average is 0.05.
Base
System
Value
2
Binary
1110111001001100101000010110001
3
Ternary
12011022110201010000
4
Quaternary
1313021211002301
5
Quinary
13043220442404
6
Senary
530205300213
8
Octal
16711450261
10
Decimal
1998999729
12
Duodecimal
479564669
16
Hexadecimal
772650b1
20
Vigesimal
1b4dej69
36
Base36
x25i29
md5
c42164eb20fd78b6182ee616f6de14fc
sha1
aa645e9de9347f40fd5d9f0efa40b08d700cc810
sha256
e1e723efe5fdd44d231385434125c8957b9e49862b762370b9fd00a05986b1c8
sha512
43e63c96d471ece4fe6a3d10f371c057e9be94637b2dc5d1f985cb1ad87521f0336caf5c72f1f56be0684b97fe3d59f9c5bbb9c48bad08950c40fe2ca1cf899d
ripemd-160
626574c4acf4bb0a32bae71f6b828428b69b8ba2
Diameter
3997999458
Circumference
12560085726.309
Area
1.2553803981554E+19
Volume
3.3460067676061E+28
Surface area
5.0215215926216E+19
Circumference
12560085726.309
Perimeter
7995998916
Area
3995999916542073441
Diagonal
2827012527.9319
Surface area
2.3975999499252E+19
Volume
7.9880027502516E+27
Space diagonal
3462369094.9444
Perimeter
5996999187
Area
1.730318720623E+18
Altitude
1731184547.4722
Surface area
1.730318720623E+18
Volume
9.4139515213995E+26
Height
942337509.31065