1997348981 is an odd 10-digits prime number following 1997348980
and preceding 1997348982 . In scientific notation, it is written as 1.997348981 × 10^9.
The sum of its digits is 59. It has a total of 1 prime factors and 2 positive divisors.
There are 1997348980 positive integers (up to 1997348981) that are relatively prime to 1997348981.
1997348981 has 2 divisors, whose sum is 1997348982
The reverse of 1997348981 is 1898437991
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 10
Sum of Digits 59
Digital Root 5
Name
one billion nine hundred ninety-seven million three hundred forty-eight thousand nine hundred eighty-one
Scientific notation
1.997348981 × 10^9
Engineering notation
1.997348981 × 10^9
Prime Factorization
1997348981
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
1997348981
Product of the distinct prime numbers
The prime factorization of 1997348981 is 1997348981.
Since it has a total of 1 prime factors.
9 , 9 , 6 , 82 , 811 , 818 , 2071 , 6107 , 75455 , 74947 , 910885 , 774390 , 5055333 , 6137200 , 55814849 , 31635474 , 137750642 , 7579528 , 2372343397 , 6610841367
n×2
3994697962
n×3
5992046943
n×4
7989395924
n×5
9986744905
n÷2
998674490.5
n÷3
665782993.66667
n÷3
499337245.25
n÷5
399469796.2
n2
3989402951901738361
n3
7.9682299207793E+27
n4
1.5915335912642E+37
n5
3.1788479967389E+46
2 √n
44691.710428221
3 √n
1259.3641246455
4 √n
211.40414004513
5 √n
72.458742125707
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
1997348982
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
998674491
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
44691.710439409
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999989987
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1997348981 can be divided by 2 positive divisors.
The sum of these divisors (counting 1997348981) is 1997348982, the average is 998674491.
Base
System
Value
2
Binary
1110111000011010010000001110101
3
Ternary
12011012100211201012
4
Quaternary
1313003102001311
5
Quinary
13042310131411
6
Senary
530110042005
8
Octal
16703220165
10
Decimal
1997348981
12
Duodecimal
478aa9305
16
Hexadecimal
770d2075
20
Vigesimal
1b438c91
36
Base36
x164c5
md5
53fcffc75fbd6853376e64a0d71c13bd
sha1
9163f1fad4bebe3f2802d4ae81d1af37ef52f741
sha256
13fe4ac7bca84f5f7e060cf6004eaf2ae467b89d13358e03a60f35f4862f3072
sha512
ece02e9e28b65202ce7aa10f4d4be7b73cfebe269854abdaae4f30614f30dbc2e9bcef0c6aba8536c3168ab474a7664059c05caa987b133433860b68786118e5
ripemd-160
ef7bf1acdc1c1669764377d8b0a3d184aba9c3a8
Diameter
3994697962
Circumference
12549713770.729
Area
1.2533079005904E+19
Volume
3.3377243441646E+28
Surface area
5.0132316023616E+19
Circumference
12549713770.729
Perimeter
7989395924
Area
3989402951901738361
Diagonal
2824678017.7223
Surface area
2.393641771141E+19
Volume
7.9682299207793E+27
Space diagonal
3459509915.5379
Perimeter
5992046943
Area
1.7274621511398E+18
Altitude
1729754957.769
Surface area
1.7274621511398E+18
Volume
9.3906490183944E+26
Height
941559339.24076