221668 is an even 6-digits composite number following 221667
and preceding 221669 . In scientific notation, it is written as 2.21668 × 10^5.
The sum of its digits is 25. It has a total of 4 prime factors and 12 positive divisors.
There are 109800 positive integers (up to 221668) that are relatively prime to 221668.
221668 has 12 divisors, whose sum is 391552
The reverse of 221668 is 866122
Previous prime number is 151
Is Prime? no
Number parity even
Number length 6
Sum of Digits 25
Digital Root 7
Name
two hundred twenty-one thousand six hundred sixty-eight
Scientific notation
2.21668 × 10^5
Engineering notation
2.21668 × 10^3
Prime Factorization
2 × 2 × 151 × 367
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
110834
Product of the distinct prime numbers
The prime factorization of 221668 is 2 × 2 × 151 × 367.
Since it has a total of 4 prime factors.
4 , 4 , 11 , 28 , 873 , 994 , 1514 , 1508 , 91177 , 24369 , 254158 , 46983 , 7067649 , 2948453 , 89080872 , 69714687 , 778666703 , 176755351 , 4552710591 , 2943543149
n×2
443336
n×3
665004
n×4
886672
n×5
1108340
n÷2
110834
n÷3
73889.333333333
n÷3
55417
n÷5
44333.6
n2
49136702224
n3
10892034508589632
n4
2.41441550545E+21
n5
5.351986562621E+26
2 √n
470.81631237671
3 √n
60.520290077673
4 √n
21.698302062067
5 √n
11.725749191233
1 , 2 , 4 , 151 , 302 , 367 , 604 , 734 , 1468 , 55417 , 110834 , 221668
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
-221667
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 221668 can be divided by 12 positive divisors.
The sum of these divisors (counting 221668) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
110110000111100100
3
Ternary
102021001221
4
Quaternary
312013210
5
Quinary
24043133
6
Senary
4430124
8
Octal
660744
10
Decimal
221668
12
Duodecimal
a8344
16
Hexadecimal
361e4
20
Vigesimal
17e38
36
Base36
4r1g
md5
86843579a6edcbb2aaead9b00b099336
sha1
4050fe2105b8b65cd0fd21089eb95fea8907d010
sha256
440aa9ea595d876a6c681ba246ae4e43a41519dc83043f3e8f3dfa5dc27e0c2b
sha512
8a2fc992da4fee219fe1f13457276bb16744959accff7bb48493e9265b1dddbb190e8707e5d78427e12159f0b686d5aba61e6abfac9226f925ea946c42edd827
ripemd-160
a62fab6fab511c295b344d4c01617feeaac5a78e
Diameter
443336
Circumference
1392781.1206719
Area
154367502728.55
Volume
4.5624447459776E+16
Surface area
617470010914.19
Circumference
1392781.1206719
Perimeter
886672
Area
49136702224
Diagonal
313485.89194412
Surface area
294820213344
Volume
10892034508589632
Space diagonal
383940.23841218
Perimeter
665004
Area
21276816192.088
Altitude
191970.11920609
Surface area
21276816192.088
Volume
1.2836385769903E+15
Height
104495.29731471