1997291221 is an odd 10-digits composite number following 1997291220
and preceding 1997291222 . In scientific notation, it is written as 1.997291221 × 10^9.
The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors.
There are 1997193132 positive integers (up to 1997291221) that are relatively prime to 1997291221.
1997291221 has 4 divisors, whose sum is 1997389312
The reverse of 1997291221 is 1221927991
Previous prime number is 28843
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 43
Digital Root 7
Name
one billion nine hundred ninety-seven million two hundred ninety-one thousand two hundred twenty-one
Scientific notation
1.997291221 × 10^9
Engineering notation
1.997291221 × 10^9
Prime Factorization
28843 × 69247
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1997291221
Product of the distinct prime numbers
The prime factorization of 1997291221 is 28843 × 69247.
Since it has a total of 2 prime factors.
8 , 1 , 100 , 4 , 931 , 755 , 6910 , 6977 , 13343 , 44329 , 783426 , 234732 , 6449401 , 6527443 , 98418436 , 34119951 , 675491474 , 823849868 , 8666573238 , 7345143446
n×2
3994582442
n×3
5991873663
n×4
7989164884
n×5
9986456105
n÷2
998645610.5
n÷3
665763740.33333
n÷3
499322805.25
n÷5
399458244.2
n2
3989172221483670841
n3
7.9675386570264E+27
n4
1.5913495012657E+37
n5
3.1783883884207E+46
2 √n
44691.0642187
3 √n
1259.3519849587
4 √n
211.40261166481
5 √n
72.458323043674
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1997291220
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1997291221 can be divided by 4 positive divisors.
The sum of these divisors (counting 1997291221) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110111000011000011111011010101
3
Ternary
12011012020220110221
4
Quaternary
1313003003323111
5
Quinary
13042301304341
6
Senary
530104514341
8
Octal
16703037325
10
Decimal
1997291221
12
Duodecimal
478a7b9b1
16
Hexadecimal
770c3ed5
20
Vigesimal
1b431811
36
Base36
x14vrp
md5
6078e61345dd5b69d0f16aa2c81c9590
sha1
7153e97816aecf3ded649d9b3acd6fc1b75248b3
sha256
acfe8ff785e92f7f5de7c322f1efa6d78ec6d8f79ae7ca42effe5109e2d70bd1
sha512
2f06e2f690f7d88a5a6824058948fb77188908d368cf9f49046ebb2cac765b00ecd5539d1d332cc58b6d36041654dd19c7fcc100169a00af0d5bec1298c453e7
ripemd-160
466757bbaf928efaae8bd7604912678da7af3765
Diameter
3994582442
Circumference
12549350853.946
Area
1.2532354144918E+19
Volume
3.3374347882809E+28
Surface area
5.012941657967E+19
Circumference
12549350853.946
Perimeter
7989164884
Area
3989172221483670841
Diagonal
2824596332.7469
Surface area
2.3935033328902E+19
Volume
7.9675386570264E+27
Space diagonal
3459409872.2833
Perimeter
5991873663
Area
1.727362241938E+18
Altitude
1729704936.1416
Surface area
1.727362241938E+18
Volume
9.3898343562489E+26
Height
941532110.91564