1998781189 is an odd 10-digits prime number following 1998781188
and preceding 1998781190 . In scientific notation, it is written as 1.998781189 × 10^9.
The sum of its digits is 61. It has a total of 1 prime factors and 2 positive divisors.
There are 1998781188 positive integers (up to 1998781189) that are relatively prime to 1998781189.
1998781189 has 2 divisors, whose sum is 1998781190
The reverse of 1998781189 is 9811878991
Previous prime number is 1
Is Prime? yes Number parity odd Number length 10 Sum of Digits 61 Digital Root 7
Name
one billion nine hundred ninety-eight million seven hundred eighty-one thousand one hundred eighty-nine
Scientific notation
1.998781189 × 10^9
Engineering notation
1.998781189 × 10^9
Prime Factorization
1998781189
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
1998781189 Product of the distinct prime numbers
The prime factorization of 1998781189 is 1998781189.
Since it has a total of 1 prime factors.
10 , 9 , 27 , 33 , 638 , 991 , 2729 , 9928 , 63078 , 19243 , 995287 , 395093 , 1198838 , 1895227 , 97878783 , 55028769 , 659611894 , 253577936 , 7379195038 , 6150362132
n×2
3997562378
n×3
5996343567
n×4
7995124756
n×5
9993905945
n÷2
999390594.5
n÷3
666260396.33333
n÷3
499695297.25
n÷5
399756237.8
n2
3995126241500253721
n3
7.985383179191E+27
n4
1.5961033685524E+37
n5
3.1902613887621E+46
2 √n44707.730752075
3 √n1259.6650636156
4 √n211.44202692955
5 √n72.469130519394
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
1998781190 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
999390595 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
44707.730763258 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999989994 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1998781189 can be divided by 2 positive divisors.
The sum of these divisors (counting 1998781189) is 1998781190, the average is 999390595.
Base
System
Value
2
Binary
1110111001000101111101100000101
3
Ternary
12011022001121022221
4
Quaternary
1313020233230011
5
Quinary
13043141444224
6
Senary
530200452341
8
Octal
16710575405
10
Decimal
1998781189
12
Duodecimal
47947a0b1
16
Hexadecimal
7722fb05
20
Vigesimal
1b4c7cj9
36
Base36
x20tfp
md5
cfd9e95822b87c0a19a9d0ebaed5da60
sha1
06161385d8b37e5d495aa682baacc879e99ded31
sha256
06e37e06d22e779fdc07eda0ef8798cffe4fa290a7674fb35ca87c52202bda9e
sha512
1bf212fce34a7ff1d56926d8b467ee7a4e10798af6e6ac81294c68cfae4bce31b132415dc3875bc958f2139d9ee48e5b4f8569c3285a3171c6e269d15a058d07
ripemd-160
b5168559e67dc41a46c37df59db4c5bfffd3e0e5
Diameter
3997562378
Circumference
12558712598.992
Area
1.2551059250461E+19
Volume
3.3449094842461E+28
Surface area
5.0204237001844E+19
Circumference
12558712598.992
Perimeter
7995124756
Area
3995126241500253721
Diagonal
2826703465.7
Surface area
2.3970757449002E+19
Volume
7.985383179191E+27
Space diagonal
3461990572.5609
Perimeter
5996343567
Area
1.7299404082325E+18
Altitude
1730995286.2805
Surface area
1.7299404082325E+18
Volume
9.4108643272982E+26
Height
942234488.56667