218006978 is an even 9-digits composite number following 218006977
and preceding 218006979 . In scientific notation, it is written as 2.18006978 × 10^8.
The sum of its digits is 41. It has a total of 5 prime factors and 32 positive divisors.
There are 88976160 positive integers (up to 218006978) that are relatively prime to 218006978.
218006978 has 32 divisors, whose sum is 349920000
The reverse of 218006978 is 879600812
Previous prime number is 29
Is Prime? no
Number parity even
Number length 9
Sum of Digits 41
Digital Root 5
Name
two hundred eighteen million six thousand nine hundred seventy-eight
Scientific notation
2.18006978 × 10^8
Engineering notation
2.18006978 × 10^6
Prime Factorization
2 × 49 × 79 × 29 × 971
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
218006978
Product of the distinct prime numbers
The prime factorization of 218006978 is 2 × 49 × 79 × 29 × 971.
Since it has a total of 5 prime factors.
8 , 10 , 91 , 14 , 866 , 44 , 2351 , 7972 , 70224 , 39968 , 600945 , 646002 , 1074352 , 1459562 , 89416344 , 27572233 , 858375679 , 472268889 , 8749020819 , 9572807802
n×2
436013956
n×3
654020934
n×4
872027912
n×5
1090034890
n÷2
109003489
n÷3
72668992.666667
n÷3
54501744.5
n÷5
43601395.6
n2
47527042456692484
n3
1.0361226899261E+25
n4
2.2588197646802E+33
n5
4.9243847074461E+41
2 √n
14765.05936324
3 √n
601.85258694507
4 √n
121.51156061561
5 √n
46.525824586388
1 , 2 , 29 , 49 , 58 , 79 , 98 , 158 , 971 , 1421 , 1942 , 2291 , 2842 , 3871 , 4582 , 7742 , 28159 , 47579 , 56318 , 76709 , 95158 , 112259 , 153418 , 224518 , 1379791 , 2224561 , 2759582 , 3758741 , 4449122 , 7517482 , 109003489 , 218006978
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-218006977
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 218006978 can be divided by 32 positive divisors.
The sum of these divisors (counting 218006978) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1100111111101000010111000010
3
Ternary
120012012220100112
4
Quaternary
30333220113002
5
Quinary
421302210403
6
Senary
33344351322
8
Octal
1477502702
10
Decimal
218006978
12
Duodecimal
61015542
16
Hexadecimal
cfe85c2
20
Vigesimal
382ah8i
36
Base36
3lsn9e
md5
71652b0a7ad9b593a06118355b0d1122
sha1
e8b976bd5d4d1601f160fe77eec8aac37c92bd48
sha256
b91fd2509eed67884a43aaba4b8232af1d72946f210118a38c485c10276eeebb
sha512
adda85d1345b58834f44308e512033cb54fb72758fd27301842300cdec7eeabf62f6bdfaacf416e02d57de747d69b47c842c55a14ac453256f9fd09d4d206a95
ripemd-160
79ee21fa5c3774c56a8c0b25146ebdd1dd181e24
Diameter
436013956
Circumference
1369778241.0322
Area
1.493106074288E+17
Volume
4.3401005745195E+25
Surface area
5.9724242971518E+17
Circumference
1369778241.0322
Perimeter
872027912
Area
47527042456692484
Diagonal
308308424.97957
Surface area
285162254740154904
Volume
1.0361226899261E+25
Space diagonal
377599162.30055
Perimeter
654020934
Area
2.0579813067119E+16
Altitude
188799581.15028
Surface area
2.0579813067119E+16
Volume
1.2210823003133E+24
Height
102769474.99319