1998131087 is an odd 10-digits prime number following 1998131086
and preceding 1998131088 . In scientific notation, it is written as 1.998131087 × 10^9.
The sum of its digits is 47. It has a total of 1 prime factors and 2 positive divisors.
There are 1998131086 positive integers (up to 1998131087) that are relatively prime to 1998131087.
1998131087 has 2 divisors, whose sum is 1998131088
The reverse of 1998131087 is 7801318991
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 10
Sum of Digits 47
Digital Root 2
Name
one billion nine hundred ninety-eight million one hundred thirty-one thousand eighty-seven
Scientific notation
1.998131087 × 10^9
Engineering notation
1.998131087 × 10^9
Prime Factorization
1998131087
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
1998131087
Product of the distinct prime numbers
The prime factorization of 1998131087 is 1998131087.
Since it has a total of 1 prime factors.
1 , 2 , 52 , 86 , 625 , 280 , 7546 , 7740 , 85481 , 67886 , 2628 , 391632 , 6604127 , 470581 , 98863779 , 4417820 , 591755735 , 514815203 , 9235728191 , 9575352815
n×2
3996262174
n×3
5994393261
n×4
7992524348
n×5
9990655435
n÷2
999065543.5
n÷3
666043695.66667
n÷3
499532771.75
n÷5
399626217.4
n2
3992527840835801569
n3
7.977593994487E+27
n4
1.5940278559849E+37
n5
3.1850766125874E+46
2 √n
44700.459583767
3 √n
1259.5284804516
4 √n
211.42483199418
5 √n
72.4644158005
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
1998131088
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
999065544
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
44700.459594953
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999989991
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1998131087 can be divided by 2 positive divisors.
The sum of these divisors (counting 1998131087) is 1998131088, the average is 999065544.
Base
System
Value
2
Binary
1110111000110010000111110001111
3
Ternary
12011020211120120002
4
Quaternary
1313012100332033
5
Quinary
13043010143322
6
Senary
530134514515
8
Octal
16706207617
10
Decimal
1998131087
12
Duodecimal
479205a3b
16
Hexadecimal
77190f8f
20
Vigesimal
1b4867e7
36
Base36
x1mvtb
md5
ca4afd39c549d44f53bb34b6bdd7c5c5
sha1
07fbadd9be06d28a539cce5be49e84bd23909ce4
sha256
95d3f2fb535a3fd1b62ac109b8883aa95ede96a9c68ab43c75dfb922a24b886a
sha512
14068d6fca07256a10f94324261efc7e138073276b24849d23770dfd75989ffa0cbe3909d8e796279a68ccae5b2dacf5a8421625315b753d6ffe44408a84a80d
ripemd-160
15ea39652abaa9611448f7a73dfcceab33e8e91a
Diameter
3996262174
Circumference
12554627887.657
Area
1.2542896134022E+19
Volume
3.341646758187E+28
Surface area
5.017158453609E+19
Circumference
12554627887.657
Perimeter
7992524348
Area
3992527840835801569
Diagonal
2825784082.6347
Surface area
2.3955167045015E+19
Volume
7.977593994487E+27
Space diagonal
3460864562.8668
Perimeter
5994393261
Area
1.7288152677402E+18
Altitude
1730432281.4334
Surface area
1.7288152677402E+18
Volume
9.4016846850914E+26
Height
941928027.5449