1997666989 is an odd 10-digits composite number following 1997666988
and preceding 1997666990 . In scientific notation, it is written as 1.997666989 × 10^9.
The sum of its digits is 70. It has a total of 3 prime factors and 8 positive divisors.
There are 1982463552 positive integers (up to 1997666989) that are relatively prime to 1997666989.
1997666989 has 8 divisors, whose sum is 2012895000
The reverse of 1997666989 is 9896667991
Previous prime number is 1229
Is Prime? no Number parity odd Number length 10 Sum of Digits 70 Digital Root 7
Name
one billion nine hundred ninety-seven million six hundred sixty-six thousand nine hundred eighty-nine
Scientific notation
1.997666989 × 10^9
Engineering notation
1.997666989 × 10^9
Prime Factorization
149 × 1229 × 10909
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
1997666989 Product of the distinct prime numbers
The prime factorization of 1997666989 is 149 × 1229 × 10909.
Since it has a total of 3 prime factors.
7 , 3 , 91 , 3 , 700 , 72 , 7750 , 7573 , 83831 , 41898 , 453024 , 342085 , 1822181 , 4238226 , 23314463 , 44628487 , 496433741 , 93320852 , 6894315046 , 5471392440
n×2
3995333978
n×3
5993000967
n×4
7990667956
n×5
9988334945
n÷2
998833494.5
n÷3
665888996.33333
n÷3
499416747.25
n÷5
399533397.8
n2
3990673398940326121
n3
7.9720365129435E+27
n4
1.592547417701E+37
n5
3.1813794047585E+46
2 √n44695.268082874
3 √n1259.4309576689
4 √n211.41255422248
5 √n72.461049283099
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
-1997666988 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 1997666989 can be divided by 8 positive divisors.
The sum of these divisors (counting 1997666989) is 1, the average is 0.125.
Base
System
Value
2
Binary
1110111000100011111101010101101
3
Ternary
12011012221222221021
4
Quaternary
1313010133222231
5
Quinary
13042400320424
6
Senary
530120534141
8
Octal
16704375255
10
Decimal
1997666989
12
Duodecimal
479021351
16
Hexadecimal
7711faad
20
Vigesimal
1b458799
36
Base36
x1cxpp
md5
3f593a136a57e0dec8ecccdd51c0106d
sha1
19849297877311a94d9029806b696241583242ed
sha256
c2f284912d4c60a235dc08651f1395dbf5633262e1a80c089d1024c4b95da213
sha512
ac4b3ba43eccaaf6694f768f34e61b19e9271165371bb92e98366a6ccb27a276260194d4414cf837e4f29e230e7785717d11301f25e1d3d625e8b5a145b6ceca
ripemd-160
2518c43b2580a094a967be3f2d2a8998e9139000
Diameter
3995333978
Circumference
12551711873.922
Area
1.2537070232987E+19
Volume
3.3393188457617E+28
Surface area
5.0148280931949E+19
Circumference
12551711873.922
Perimeter
7990667956
Area
3990673398940326121
Diagonal
2825127748.9488
Surface area
2.3944040393642E+19
Volume
7.9720365129435E+27
Space diagonal
3460060721.5511
Perimeter
5993000967
Area
1.7280122708446E+18
Altitude
1730030360.7756
Surface area
1.7280122708446E+18
Volume
9.3951351302819E+26
Height
941709249.64961