218331381 is an odd 9-digits composite number following 218331380
and preceding 218331382 . In scientific notation, it is written as 2.18331381 × 10^8.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 145494272 positive integers (up to 218331381) that are relatively prime to 218331381.
218331381 has 8 divisors, whose sum is 291228480
The reverse of 218331381 is 183133812
Previous prime number is 2663
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 30
Digital Root 3
Name
two hundred eighteen million three hundred thirty-one thousand three hundred eighty-one
Scientific notation
2.18331381 × 10^8
Engineering notation
2.18331381 × 10^6
Prime Factorization
3 × 2663 × 27329
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
218331381
Product of the distinct prime numbers
The prime factorization of 218331381 is 3 × 2663 × 27329.
Since it has a total of 3 prime factors.
10 , 9 , 32 , 32 , 672 , 351 , 5460 , 3180 , 97272 , 87251 , 328365 , 128952 , 1018842 , 379516 , 65847353 , 58643445 , 526640582 , 231927656 , 2468464139 , 6526175600
n×2
436662762
n×3
654994143
n×4
873325524
n×5
1091656905
n÷2
109165690.5
n÷3
72777127
n÷3
54582845.25
n÷5
43666276.2
n2
47668591929367161
n3
1.0407549506264E+25
n4
2.2722946565285E+33
n5
4.9611323039879E+41
2 √n
14776.040775526
3 √n
602.15096580667
4 √n
121.55673891449
5 √n
46.539662805294
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
-218331380
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 218331381 can be divided by 8 positive divisors.
The sum of these divisors (counting 218331381) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101000000110111100011110101
3
Ternary
120012211101100110
4
Quaternary
31000313203311
5
Quinary
421343101011
6
Senary
33355333233
8
Octal
1500674365
10
Decimal
218331381
12
Duodecimal
61151219
16
Hexadecimal
d0378f5
20
Vigesimal
384b891
36
Base36
3lzlkl
md5
85df9707902769b63567c5e2e7f12a44
sha1
688dc2deb0c33b7f70be4cd06c3940a2ad3450bf
sha256
ece4231e1a3d740096831757995196df2c5206345f097fec75497b34b015a29f
sha512
eada66df468a697e2304a45e4da57b3b2874609a272baac70bf049b12ae240e488fa4fb37e88ae12e42f7fdca6af71f3a037b29c050fc2c2ade96d582cca56b8
ripemd-160
5cff5d7fa1e49a2d516c4da61dd175052ee4a680
Diameter
436662762
Circumference
1371816525.1954
Area
1.4975529821227E+17
Volume
4.3595041427669E+25
Surface area
5.9902119284908E+17
Circumference
1371816525.1954
Perimeter
873325524
Area
47668591929367161
Diagonal
308767200.10185
Surface area
286011551576202966
Volume
1.0407549506264E+25
Space diagonal
378161044.77868
Perimeter
654994143
Area
2.0641105786733E+16
Altitude
189080522.38934
Surface area
2.0641105786733E+16
Volume
1.2265414719024E+24
Height
102922400.03395