218040981 is an odd 9-digits composite number following 218040980
and preceding 218040982 . In scientific notation, it is written as 2.18040981 × 10^8.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 142902144 positive integers (up to 218040981) that are relatively prime to 218040981.
218040981 has 16 divisors, whose sum is 295656384
The reverse of 218040981 is 189040812
Previous prime number is 757
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 33
Digital Root 6
Name
two hundred eighteen million forty thousand nine hundred eighty-one
Scientific notation
2.18040981 × 10^8
Engineering notation
2.18040981 × 10^6
Prime Factorization
3 × 67 × 757 × 1433
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
218040981
Product of the distinct prime numbers
The prime factorization of 218040981 is 3 × 67 × 757 × 1433.
Since it has a total of 4 prime factors.
8 , 7 , 61 , 49 , 922 , 976 , 6153 , 5584 , 92892 , 44686 , 176548 , 79267 , 7005234 , 9287976 , 17241435 , 40240842 , 205420574 , 877771731 , 5797802311 , 4627579649
n×2
436081962
n×3
654122943
n×4
872163924
n×5
1090204905
n÷2
109020490.5
n÷3
72680327
n÷3
54510245.25
n÷5
43608196.2
n2
47541869395442361
n3
1.0366075841556E+25
n4
2.2602293456133E+33
n5
4.9282262380251E+41
2 √n
14766.210786793
3 √n
601.88387605
4 √n
121.51629844096
5 √n
46.527275841698
1 , 3 , 67 , 201 , 757 , 1433 , 2271 , 4299 , 50719 , 96011 , 152157 , 288033 , 1084781 , 3254343 , 72680327 , 218040981
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
-218040980
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 218040981 can be divided by 16 positive divisors.
The sum of these divisors (counting 218040981) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1100111111110000101010010101
3
Ternary
120012021121222220
4
Quaternary
30333300222111
5
Quinary
421304302411
6
Senary
33345212553
8
Octal
1477605225
10
Decimal
218040981
12
Duodecimal
61031159
16
Hexadecimal
cff0a95
20
Vigesimal
382f291
36
Base36
3ltdhx
md5
5dfe19acdb20401db5ecf6c917442f28
sha1
ba058200aeffebb7cded195f08cd77ec65a8f526
sha256
3d450dfec509f9fdca0e0b416afd60044d284e08a9a7c0214792dd836e48f93e
sha512
1318258a53085e7069ac7cdd7426fa99ada5022a8f18c41fecbc5a6c832b0fd7c0672d30f01a7624d8032b589ca30745447c857f41feb109fa08875053b49176
ripemd-160
e6fec70add4ae4beb4dad38be8c247d2274fc8fa
Diameter
436081962
Circumference
1369991888.1822
Area
1.4935718763065E+17
Volume
4.3421316947183E+25
Surface area
5.9742875052259E+17
Circumference
1369991888.1822
Perimeter
872163924
Area
47541869395442361
Diagonal
308356512.48333
Surface area
285251216372654166
Volume
1.0366075841556E+25
Space diagonal
377658057.22416
Perimeter
654122943
Area
2.0586233319928E+16
Altitude
188829028.61208
Surface area
2.0586233319928E+16
Volume
1.2216537536431E+24
Height
102785504.16111