2181291243 is an odd 10-digits composite number following 2181291242
and preceding 2181291244 . In scientific notation, it is written as 2.181291243 × 10^9.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 1432220000 positive integers (up to 2181291243) that are relatively prime to 2181291243.
2181291243 has 16 divisors, whose sum is 2952640512
The reverse of 2181291243 is 3421921812
Previous prime number is 191
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 33
Digital Root 6
Name
two billion one hundred eighty-one million two hundred ninety-one thousand two hundred forty-three
Scientific notation
2.181291243 × 10^9
Engineering notation
2.181291243 × 10^9
Prime Factorization
3 × 101 × 191 × 37691
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
2181291243
Product of the distinct prime numbers
The prime factorization of 2181291243 is 3 × 101 × 191 × 37691.
Since it has a total of 4 prime factors.
7 , 1 , 37 , 76 , 808 , 748 , 3886 , 9161 , 23568 , 92489 , 965976 , 391929 , 8117559 , 2645766 , 66652204 , 86251375 , 397588868 , 10923066 , 9012887493 , 2112394981
n×2
4362582486
n×3
6543873729
n×4
8725164972
n×5
10906456215
n÷2
1090645621.5
n÷3
727097081
n÷3
545322810.75
n÷5
436258248.6
n2
4758031486788485049
n3
1.037865241605E+28
n4
2.2638863629271E+37
n5
4.9381954985999E+46
2 √n
46704.295766021
3 √n
1296.8942118085
4 √n
216.11176683841
5 √n
73.746723737907
1 , 3 , 101 , 191 , 303 , 573 , 19291 , 37691 , 57873 , 113073 , 3806791 , 7198981 , 11420373 , 21596943 , 727097081 , 2181291243
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
-2181291242
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 2181291243 can be divided by 16 positive divisors.
The sum of these divisors (counting 2181291243) is 1, the average is 0.0625.
Base
System
Value
2
Binary
10000010000000111101110011101011
3
Ternary
12122000111002001120
4
Quaternary
2002000331303223
5
Quinary
13431402304433
6
Senary
1000240350323
8
Octal
20200756353
10
Decimal
2181291243
12
Duodecimal
50a6153a3
16
Hexadecimal
8203dceb
20
Vigesimal
1e1d1823
36
Base36
102on3f
md5
eb3df568b963cbce60586e8408d9c766
sha1
aba4e66e54776cac72ed55c025ed37e07fbdb8ec
sha256
88d1b279dcfadf957562be2fa17f63f4151da79c59c1812a4baa738c35805a15
sha512
a4cf16c3cd2c0e0ad95e48beaffff970755f4d567a5ab04492e28453e636c1c83b884c70e37d302b85d5ebcf9f6291202cf9dd25221efec99f3024e9feac807d
ripemd-160
75004687a8a1dffb9bdb76846e5ddd1bcab33f12
Diameter
4362582486
Circumference
13705457088.697
Area
1.4947796764444E+19
Volume
4.3473997579233E+28
Surface area
5.9791187057775E+19
Circumference
13705457088.697
Perimeter
8725164972
Area
4758031486788485049
Diagonal
3084811659.3363
Surface area
2.8548188920731E+19
Volume
1.037865241605E+28
Space diagonal
3778107258.9811
Perimeter
6543873729
Area
2.0602880697825E+18
Altitude
1889053629.4905
Surface area
2.0602880697825E+18
Volume
1.2231359171612E+27
Height
1028270553.1121