221639 is an odd 6-digits composite number following 221638
and preceding 221640 . In scientific notation, it is written as 2.21639 × 10^5.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 201480 positive integers (up to 221639) that are relatively prime to 221639.
221639 has 4 divisors, whose sum is 241800
The reverse of 221639 is 936122
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 23
Digital Root 5
Name
two hundred twenty-one thousand six hundred thirty-nine
Scientific notation
2.21639 × 10^5
Engineering notation
2.21639 × 10^3
Prime Factorization
11 × 20149
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
221639
Product of the distinct prime numbers
The prime factorization of 221639 is 11 × 20149.
Since it has a total of 2 prime factors.
2 , 1 , 3 , 29 , 344 , 329 , 5490 , 1654 , 36894 , 65201 , 922792 , 478206 , 8732646 , 8086541 , 6238532 , 93771719 , 272517125 , 870557850 , 7698275397 , 1876260924
n×2
443278
n×3
664917
n×4
886556
n×5
1108195
n÷2
110819.5
n÷3
73879.666666667
n÷3
55409.75
n÷5
44327.8
n2
49123846321
n3
10887760174740119
n4
2.4131522773692E+21
n5
5.3484865760384E+26
2 √n
470.78551379583
3 √n
60.517650747752
4 √n
21.697592350208
5 √n
11.725442367945
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-221638
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 221639 can be divided by 4 positive divisors.
The sum of these divisors (counting 221639) is 1, the average is 0.25.
Base
System
Value
2
Binary
110110000111000111
3
Ternary
102021000212
4
Quaternary
312013013
5
Quinary
24043024
6
Senary
4430035
8
Octal
660707
10
Decimal
221639
12
Duodecimal
a831b
16
Hexadecimal
361c7
20
Vigesimal
17e1j
36
Base36
4r0n
md5
e6f4ecf36968270236caef7315a94468
sha1
67f7ed8af18f2862e097496531a255ddfe6894f7
sha256
f8f227a395746b351dfdb320bcbfec0770d36fa51a5da1e0a2ce4090ae5f0b22
sha512
8a182820c12a3ff305c641084286bd20691b8809a212d4096bda2ac67c6420ee43984f3242bc55ed3bd9e9c171ecea58ed6d35148f84dc7b29d2b4d194bf9787
ripemd-160
9aa7d3ae57c163950fca497e2408981b2e20f3f9
Diameter
443278
Circumference
1392598.908298
Area
154327114718.13
Volume
4.5606543172015E+16
Surface area
617308458872.51
Circumference
1392598.908298
Perimeter
886556
Area
49123846321
Diagonal
313444.87975081
Surface area
294743077926
Volume
10887760174740119
Space diagonal
383890.00893876
Perimeter
664917
Area
21271249422.794
Altitude
191945.00446938
Surface area
21271249422.794
Volume
1.2831348419153E+15
Height
104481.6265836