216930921 is an odd 9-digits composite number following 216930920
and preceding 216930922 . In scientific notation, it is written as 2.16930921 × 10^8.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 144520512 positive integers (up to 216930921) that are relatively prime to 216930921.
216930921 has 8 divisors, whose sum is 289441440
The reverse of 216930921 is 129039612
Previous prime number is 1489
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 33
Digital Root 6
Name
two hundred sixteen million nine hundred thirty thousand nine hundred twenty-one
Scientific notation
2.16930921 × 10^8
Engineering notation
2.16930921 × 10^6
Prime Factorization
3 × 1489 × 48563
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
216930921
Product of the distinct prime numbers
The prime factorization of 216930921 is 3 × 1489 × 48563.
Since it has a total of 3 prime factors.
10 , 4 , 36 , 82 , 908 , 751 , 6729 , 7490 , 70351 , 45203 , 888198 , 996153 , 4106623 , 6194173 , 86991507 , 41082141 , 805528562 , 504587624 , 9795621195 , 1912886007
n×2
433861842
n×3
650792763
n×4
867723684
n×5
1084654605
n÷2
108465460.5
n÷3
72310307
n÷3
54232730.25
n÷5
43386184.2
n2
47059024485908241
n3
1.020855752309E+25
n4
2.2145517855653E+33
n5
4.8040475844488E+41
2 √n
14728.574981987
3 √n
600.86072854241
4 √n
121.3613405578
5 √n
46.479804428385
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
-216930920
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 216930921 can be divided by 8 positive divisors.
The sum of these divisors (counting 216930921) is 1, the average is 0.125.
Base
System
Value
2
Binary
1100111011100001101001101001
3
Ternary
120010012020021120
4
Quaternary
30323201221221
5
Quinary
421013242141
6
Senary
33305325453
8
Octal
1473415151
10
Decimal
216930921
12
Duodecimal
60796889
16
Hexadecimal
cee1a69
20
Vigesimal
37fg761
36
Base36
3l5kyx
md5
5d1ae911d44b4d3868e7224faae057bf
sha1
75624b3a2095a3d034b5b3dd06285450fe997bd5
sha256
ec68b0bdd65652c0f42a684ffb2e1ad36629be96ccd0f02d4644f095e44a65d6
sha512
c672a9caa1159a50a57627d944fbea9143110f365f7b965c8a9345f4c4708e4b76b109af8dec34c44c3db385cf66780d1613bf53537cd5d97cc67cb836774903
ripemd-160
8a5d2dfd5b66f1c5ff77a70ec0f0aa68e1acca01
Diameter
433861842
Circumference
1363017175.5001
Area
1.4784028561003E+17
Volume
4.2761505757716E+25
Surface area
5.9136114244013E+17
Circumference
1363017175.5001
Perimeter
867723684
Area
47059024485908241
Diagonal
306786650.57629
Surface area
282354146915449446
Volume
1.020855752309E+25
Space diagonal
375735376.90471
Perimeter
650792763
Area
2.0377155341055E+16
Altitude
187867688.45236
Surface area
2.0377155341055E+16
Volume
1.2030900417849E+24
Height
102262216.85876