1989756989 is an odd 10-digits composite number following 1989756988
and preceding 1989756990 . In scientific notation, it is written as 1.989756989 × 10^9.
The sum of its digits is 71. It has a total of 3 prime factors and 8 positive divisors.
There are 1808092000 positive integers (up to 1989756989) that are relatively prime to 1989756989.
1989756989 has 8 divisors, whose sum is 2171577600
The reverse of 1989756989 is 9896579891
Previous prime number is 2399
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 71
Digital Root 8
Name
one billion nine hundred eighty-nine million seven hundred fifty-six thousand nine hundred eighty-nine
Scientific notation
1.989756989 × 10^9
Engineering notation
1.989756989 × 10^9
Prime Factorization
11 × 2399 × 75401
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1989756989
Product of the distinct prime numbers
The prime factorization of 1989756989 is 11 × 2399 × 75401.
Since it has a total of 3 prime factors.
3 , 5 , 15 , 47 , 171 , 828 , 7765 , 7274 , 35731 , 67377 , 990908 , 664277 , 3740018 , 413445 , 57696951 , 3803164 , 955830357 , 229696782 , 3465101734 , 8066406578
n×2
3979513978
n×3
5969270967
n×4
7959027956
n×5
9948784945
n÷2
994878494.5
n÷3
663252329.66667
n÷3
497439247.25
n÷5
397951397.8
n2
3959132875274346121
n3
7.8777123089568E+27
n4
1.5674733124078E+37
n5
3.1188909784344E+46
2 √n
44606.692199714
3 √n
1257.766469938
4 √n
211.20296446715
5 √n
72.403574551351
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
-1989756988
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 1989756989 can be divided by 8 positive divisors.
The sum of these divisors (counting 1989756989) is 1, the average is 0.125.
Base
System
Value
2
Binary
1110110100110010100100000111101
3
Ternary
12010200002010110022
4
Quaternary
1312212110200331
5
Quinary
13033334210424
6
Senary
525235221525
8
Octal
16646244075
10
Decimal
1989756989
12
Duodecimal
4764478a5
16
Hexadecimal
7699483d
20
Vigesimal
1b1fjc99
36
Base36
wwnebh
md5
8495eec51bf8553f749ad79cfab5076a
sha1
a461a63b1df39291243b8bc040462bb40f4aded7
sha256
2b384015f3ac828ee23a273d98bc5416d12c22cbdacd5b9d99a120d85555928d
sha512
9396cdc60c73a914ff84736ac221155db5ca59908191542b03815670041847fabcec261eafcfa55882625346d9956d47063ac0fa89cdcf397ed1ad138125fca4
ripemd-160
788dbe8bc22ae50309f5e6eb8decaf27b91f3b1e
Diameter
3979513978
Circumference
12502011878.143
Area
1.2437982755548E+19
Volume
3.2998084155883E+28
Surface area
4.9751931022191E+19
Circumference
12502011878.143
Perimeter
7959027956
Area
3959132875274346121
Diagonal
2813941319.6705
Surface area
2.3754797251646E+19
Volume
7.8777123089568E+27
Space diagonal
3446360199.6633
Perimeter
5969270967
Area
1.7143548234729E+18
Altitude
1723180099.8316
Surface area
1.7143548234729E+18
Volume
9.2839729898335E+26
Height
937980439.89015