1998458081 is an odd 10-digits composite number following 1998458080
and preceding 1998458082 . In scientific notation, it is written as 1.998458081 × 10^9.
The sum of its digits is 53. It has a total of 2 prime factors and 4 positive divisors.
There are 1998350532 positive integers (up to 1998458081) that are relatively prime to 1998458081.
1998458081 has 4 divisors, whose sum is 1998565632
The reverse of 1998458081 is 1808548991
Previous prime number is 23887
Is Prime? no Number parity odd Number length 10 Sum of Digits 53 Digital Root 8
Name
one billion nine hundred ninety-eight million four hundred fifty-eight thousand eighty-one
Scientific notation
1.998458081 × 10^9
Engineering notation
1.998458081 × 10^9
Prime Factorization
23887 × 83663
Composite number
ω Distinct Factors
2 Total number of distinct prime factors
Ω Total Factors
2 Total number of prime factors
rad Radical
1998458081 Product of the distinct prime numbers
The prime factorization of 1998458081 is 23887 × 83663.
Since it has a total of 2 prime factors.
8 , 9 , 99 , 29 , 615 , 31 , 5242 , 9627 , 74073 , 20916 , 990987 , 199213 , 4831901 , 7390930 , 28688523 , 12528246 , 817402783 , 573534028 , 2379574385 , 7614619034
n×2
3996916162
n×3
5995374243
n×4
7993832324
n×5
9992290405
n÷2
999229040.5
n÷3
666152693.66667
n÷3
499614520.25
n÷5
399691616.2
n2
3993834701514202561
n3
7.9815112334193E+27
n4
1.5950715623019E+37
n5
3.1876836534555E+46
2 √n44704.117047538
3 √n1259.5971839505
4 √n211.4334813778
5 √n72.466787404484
4 divisors
τ Total Divisors
4 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-1998458080 Sum of the proper positive divisors of n
A Arithmetic Mean
0.25 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
4 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1998458081 can be divided by 4 positive divisors.
The sum of these divisors (counting 1998458081) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110111000111100000110011100001
3
Ternary
12011021110012002222
4
Quaternary
1313013200303201
5
Quinary
13043101124311
6
Senary
530145520425
8
Octal
16707406341
10
Decimal
1998458081
12
Duodecimal
479343115
16
Hexadecimal
771e0ce1
20
Vigesimal
1b4a7541
36
Base36
x1tw4h
md5
e49da9bb861f4999f5b6ef1041f781ac
sha1
73bf0e3e9355f244eda3c895bd1be6fc2b825ad8
sha256
817bfc8621050265900d228e2f0ea628a583797f12ff751afb232b21099b46bb
sha512
3877934ca44c79798582eac02bf441e52a3a24f89946a9b2e791766e41ab4fae1dc3010aeaccc00f4a31bb0ae93c8cf8f8e5b44f2854eb515e7cab6bf7a53580
ripemd-160
0772f5d41db13838d03029a78ba3511b5e7e14b4
Diameter
3996916162
Circumference
12556682451.554
Area
1.2547001757929E+19
Volume
3.3432876073939E+28
Surface area
5.0188007031716E+19
Circumference
12556682451.554
Perimeter
7993832324
Area
3993834701514202561
Diagonal
2826246521.9843
Surface area
2.3963008209085E+19
Volume
7.9815112334193E+27
Space diagonal
3461430933.0886
Perimeter
5995374243
Area
1.7293811550136E+18
Altitude
1730715466.5443
Surface area
1.7293811550136E+18
Volume
9.4063011954456E+26
Height
942082173.99477