216988 is an even 6-digits composite number following 216987
and preceding 216989 . In scientific notation, it is written as 2.16988 × 10^5.
The sum of its digits is 34. It has a total of 4 prime factors and 12 positive divisors.
There are 102080 positive integers (up to 216988) that are relatively prime to 216988.
216988 has 12 divisors, whose sum is 402192
The reverse of 216988 is 889612
Previous prime number is 17
Is Prime? no
Number parity even
Number length 6
Sum of Digits 34
Digital Root 7
Name
two hundred sixteen thousand nine hundred eighty-eight
Scientific notation
2.16988 × 10^5
Engineering notation
2.16988 × 10^3
Prime Factorization
2 × 2 × 17 × 3191
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
108494
Product of the distinct prime numbers
The prime factorization of 216988 is 2 × 2 × 17 × 3191.
Since it has a total of 4 prime factors.
10 , 5 , 71 , 6 , 898 , 176 , 373 , 1984 , 20796 , 27698 , 895544 , 621776 , 4222300 , 3925923 , 61806578 , 76235578 , 418890669 , 135675414 , 7038123863 , 522746689
n×2
433976
n×3
650964
n×4
867952
n×5
1084940
n÷2
108494
n÷3
72329.333333333
n÷3
54247
n÷5
43397.6
n2
47083792144
n3
10216617889742272
n4
2.2168834826594E+21
n5
4.810371131353E+26
2 √n
465.81970761229
3 √n
60.091342353823
4 √n
21.582856799142
5 √n
11.675813340771
1 , 2 , 4 , 17 , 34 , 68 , 3191 , 6382 , 12764 , 54247 , 108494 , 216988
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-216987
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 216988 can be divided by 12 positive divisors.
The sum of these divisors (counting 216988) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
110100111110011100
3
Ternary
102000122121
4
Quaternary
310332130
5
Quinary
23420423
6
Senary
4352324
8
Octal
647634
10
Decimal
216988
12
Duodecimal
a56a4
16
Hexadecimal
34f9c
20
Vigesimal
17298
36
Base36
4nfg
md5
17363654ad72a9efcf04f574ee8e889d
sha1
c2688a7b61d70f12fbd8c48386ff1c254f5ed0be
sha256
befe5326ca522f43d9e508777a8889c30b11cfe9e69cc0a78c0b734d4487b33e
sha512
2c07c64ab46753030e90330cb9ed35f72d3af839cd9e245fdbef65d552ba6e2d6c081fd1221c160ca22ba720a8fdb9e620de21e8aa4f278451134980d49221e7
ripemd-160
c17c37d9b16ef9565f7a89288a244149daaee18d
Diameter
433976
Circumference
1363375.8134343
Area
147918095502.74
Volume
4.2795268942598E+16
Surface area
591672382010.96
Circumference
1363375.8134343
Perimeter
867952
Area
47083792144
Diagonal
306867.37247221
Surface area
282502752864
Volume
10216617889742272
Space diagonal
375834.24063276
Perimeter
650964
Area
20387880051.605
Altitude
187917.12031638
Surface area
20387880051.605
Volume
1.2040399651048E+15
Height
102289.1241574