1988996989 is an odd 10-digits composite number following 1988996988
and preceding 1988996990 . In scientific notation, it is written as 1.988996989 × 10^9.
The sum of its digits is 76. It has a total of 3 prime factors and 8 positive divisors.
There are 1704127776 positive integers (up to 1988996989) that are relatively prime to 1988996989.
1988996989 has 8 divisors, whose sum is 2274108480
The reverse of 1988996989 is 9896998891
Previous prime number is 2393
Is Prime? no Number parity odd Number length 10 Sum of Digits 76 Digital Root 4
Name
one billion nine hundred eighty-eight million nine hundred ninety-six thousand nine hundred eighty-nine
Scientific notation
1.988996989 × 10^9
Engineering notation
1.988996989 × 10^9
Prime Factorization
7 × 2393 × 118739
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
1988996989 Product of the distinct prime numbers
The prime factorization of 1988996989 is 7 × 2393 × 118739.
Since it has a total of 3 prime factors.
1 , 5 , 6 , 50 , 130 , 1 , 7035 , 3085 , 81892 , 37525 , 105998 , 891043 , 7242672 , 4801868 , 35611075 , 54162185 , 229837649 , 313768003 , 7093516801 , 146519869
n×2
3977993978
n×3
5966990967
n×4
7955987956
n×5
9944984945
n÷2
994498494.5
n÷3
662998996.33333
n÷3
497249247.25
n÷5
397799397.8
n2
3956109022251066121
n3
7.8686889334131E+27
n4
1.5650798595936E+37
n5
3.1129391282763E+46
2 √n44598.17248498
3 √n1257.6063123153
4 √n211.18279400789
5 √n72.398042707411
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
-1988996988 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 1988996989 can be divided by 8 positive divisors.
The sum of these divisors (counting 1988996989) is 1, the average is 0.125.
Base
System
Value
2
Binary
1110110100011011010111101111101
3
Ternary
12010121122111221011
4
Quaternary
1312203122331331
5
Quinary
13033140400424
6
Senary
525211035221
8
Octal
16643327575
10
Decimal
1988996989
12
Duodecimal
47613bb11
16
Hexadecimal
768daf7d
20
Vigesimal
1b1b4c99
36
Base36
ww73wd
md5
6ddae39beb8169309aa08938c3fb2844
sha1
df2d36eb03f6d47759e46c111f754466be7f2b5b
sha256
b03595e1c14af0d70a2d8005614af8dbc60cdfac22ea7b2eac75ad650661615c
sha512
2b2661eb7e92350adb38066fba2684cdead9ee2aaff74a9cd2a082eacee857061e7bc2a4454f2d93200a926bd08146f7305ae1d2096df0ec4405cf9088d38bee
ripemd-160
f2e11a691152cefca8ad4f84feef90f8a6bc22ab
Diameter
3977993978
Circumference
12497236657.309
Area
1.2428483041104E+19
Volume
3.2960287128792E+28
Surface area
4.9713932164417E+19
Circumference
12497236657.309
Perimeter
7955987956
Area
3956109022251066121
Diagonal
2812866517.363
Surface area
2.3736654133506E+19
Volume
7.8686889334131E+27
Space diagonal
3445043841.0495
Perimeter
5966990967
Area
1.7130454567051E+18
Altitude
1722521920.5248
Surface area
1.7130454567051E+18
Volume
9.2733388397732E+26
Height
937622172.45435