1997291218 is an even 10-digits composite number following 1997291217
and preceding 1997291219 . In scientific notation, it is written as 1.997291218 × 10^9.
The sum of its digits is 49. It has a total of 4 prime factors and 16 positive divisors.
There are 919928016 positive integers (up to 1997291218) that are relatively prime to 1997291218.
1997291218 has 16 divisors, whose sum is 3233039040
The reverse of 1997291218 is 8121927991
Previous prime number is 487
Is Prime? no Number parity even Number length 10 Sum of Digits 49 Digital Root 4
Name
one billion nine hundred ninety-seven million two hundred ninety-one thousand two hundred eighteen
Scientific notation
1.997291218 × 10^9
Engineering notation
1.997291218 × 10^9
Prime Factorization
2 × 13 × 487 × 157739
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
1997291218 Product of the distinct prime numbers
The prime factorization of 1997291218 is 2 × 13 × 487 × 157739.
Since it has a total of 4 prime factors.
5 , 3 , 84 , 20 , 647 , 670 , 8272 , 7245 , 37351 , 27237 , 909303 , 584767 , 7921365 , 2769704 , 172867 , 84878427 , 930884787 , 69236786 , 5050101919 , 7856178184
n×2
3994582436
n×3
5991873654
n×4
7989164872
n×5
9986456090
n÷2
998645609
n÷3
665763739.33333
n÷3
499322804.5
n÷5
399458243.6
n2
3989172209499923524
n3
7.9675386211239E+27
n4
1.5913494917047E+37
n5
3.1783883645505E+46
2 √n44691.064185137
3 √n1259.3519843282
4 √n211.40261158542
5 √n72.458323021907
1 , 2 , 13 , 26 , 487 , 974 , 6331 , 12662 , 157739 , 315478 , 2050607 , 4101214 , 76818893 , 153637786 , 998645609 , 1997291218
16 divisors
τ Total Divisors
16 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-1997291217 Sum of the proper positive divisors of n
A Arithmetic Mean
0.0625 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
16 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1997291218 can be divided by 16 positive divisors.
The sum of these divisors (counting 1997291218) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1110111000011000011111011010010
3
Ternary
12011012020220110211
4
Quaternary
1313003003323102
5
Quinary
13042301304333
6
Senary
530104514334
8
Octal
16703037322
10
Decimal
1997291218
12
Duodecimal
478a7b9aa
16
Hexadecimal
770c3ed2
20
Vigesimal
1b43180i
36
Base36
x14vrm
md5
0e0f0cd2805f40cd81ceddf8998ef4bf
sha1
f370ee9d68c8b595ae51e35ce677271422ef427f
sha256
fe2336018122b6742c2a7b08496e68ed347a43f9fdb500f2a1c5f37a2407c2aa
sha512
853fb0e9a6a912a07fc8247108d6085217836f3f06a63d504dcb77ce9a1ddbe38ac7564e831f468f1aa655de6fcb756b682b2698894c61dc6cfec5247de48c43
ripemd-160
b25fe2f50ab5fe121b9d3144cad11cfa0ab0e7de
Diameter
3994582436
Circumference
12549350835.096
Area
1.253235410727E+19
Volume
3.3374347732421E+28
Surface area
5.0129416429078E+19
Circumference
12549350835.096
Perimeter
7989164872
Area
3989172209499923524
Diagonal
2824596328.5043
Surface area
2.3935033257E+19
Volume
7.9675386211239E+27
Space diagonal
3459409867.0871
Perimeter
5991873654
Area
1.7273622367489E+18
Altitude
1729704933.5436
Surface area
1.7273622367489E+18
Volume
9.3898343139373E+26
Height
941532109.50143