221066905 is an odd 9-digits composite number following 221066904
and preceding 221066906 . In scientific notation, it is written as 2.21066905 × 10^8.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 176093568 positive integers (up to 221066905) that are relatively prime to 221066905.
221066905 has 8 divisors, whose sum is 266420232
The reverse of 221066905 is 509660122
Previous prime number is 233
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 31
Digital Root 4
Name
two hundred twenty-one million sixty-six thousand nine hundred five
Scientific notation
2.21066905 × 10^8
Engineering notation
2.21066905 × 10^6
Prime Factorization
5 × 233 × 189757
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
221066905
Product of the distinct prime numbers
The prime factorization of 221066905 is 5 × 233 × 189757.
Since it has a total of 3 prime factors.
5 , 8 , 15 , 88 , 308 , 498 , 3292 , 5433 , 84665 , 64265 , 683948 , 914611 , 3143547 , 222718 , 79431466 , 45734358 , 994325716 , 834803253 , 2637876468 , 7615494290
n×2
442133810
n×3
663200715
n×4
884267620
n×5
1105334525
n÷2
110533452.5
n÷3
73688968.333333
n÷3
55266726.25
n÷5
44213381
n2
48870576486279025
n3
1.0803667089387E+25
n4
2.3883332461012E+33
n5
5.2798143882421E+41
2 √n
14868.318835699
3 √n
604.65536458521
4 √n
121.93571599699
5 √n
46.655703915356
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
-221066904
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 221066905 can be divided by 8 positive divisors.
The sum of these divisors (counting 221066905) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101001011010011011010011001
3
Ternary
120101222100210011
4
Quaternary
31023103122121
5
Quinary
423043120110
6
Senary
33534121521
8
Octal
1513233231
10
Decimal
221066905
12
Duodecimal
620502a1
16
Hexadecimal
d2d3699
20
Vigesimal
391d755
36
Base36
3nm8bd
md5
197e2f612009d4af3bd8d5256b40efd1
sha1
38c41b9e25602f56a5e220dcb3604eaea626d320
sha256
83b4541b735ebcf59c395d2a4cb71288ba4e2881e945b9cdaa4c2083242e850c
sha512
1a2f48cf64dd873da7cf1db12e50875904eb1113fddd118453732a8b2952a9653fc013883ccdc5482f58d9bbc7c3adde639e66e3f71497c33b10022b64205e3f
ripemd-160
9822fac60f0cf349676fe54f233ff2f2e3ddf521
Diameter
442133810
Circumference
1389004329.3997
Area
1.5353144406599E+17
Volume
4.5254294879799E+25
Surface area
6.1412577626397E+17
Circumference
1389004329.3997
Perimeter
884267620
Area
48870576486279025
Diagonal
312635815.24284
Surface area
293223458917674150
Volume
1.0803667089387E+25
Space diagonal
382899111.332
Perimeter
663200715
Area
2.1161580367354E+16
Altitude
191449555.666
Surface area
2.1161580367354E+16
Volume
1.2732243767646E+24
Height
104211938.41428