221235905 is an odd 9-digits composite number following 221235904
and preceding 221235906 . In scientific notation, it is written as 2.21235905 × 10^8.
The sum of its digits is 29. It has a total of 4 prime factors and 16 positive divisors.
There are 151139520 positive integers (up to 221235905) that are relatively prime to 221235905.
221235905 has 16 divisors, whose sum is 279823680
The reverse of 221235905 is 509532122
Previous prime number is 1397
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 29
Digital Root 2
Name
two hundred twenty-one million two hundred thirty-five thousand nine hundred five
Scientific notation
2.21235905 × 10^8
Engineering notation
2.21235905 × 10^6
Prime Factorization
5 × 19 × 1397 × 1667
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
221235905
Product of the distinct prime numbers
The prime factorization of 221235905 is 5 × 19 × 1397 × 1667.
Since it has a total of 4 prime factors.
8 , 3 , 5 , 31 , 413 , 387 , 2814 , 7213 , 84652 , 1269 , 942184 , 522298 , 5780428 , 6327186 , 37667318 , 96706459 , 870628725 , 184955092 , 6491172955 , 1190240250
n×2
442471810
n×3
663707715
n×4
884943620
n×5
1106179525
n÷2
110617952.5
n÷3
73745301.666667
n÷3
55308976.25
n÷5
44247181
n2
48945325661169025
n3
1.0828463418168E+25
n4
2.3956449040779E+33
n5
5.3000266841231E+41
2 √n
14874.000974855
3 √n
604.80940653003
4 √n
121.95901350394
5 √n
46.662835153721
1 , 5 , 19 , 95 , 1397 , 1667 , 6985 , 8335 , 26543 , 31673 , 132715 , 158365 , 2328799 , 11643995 , 44247181 , 221235905
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-221235904
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 221235905 can be divided by 16 positive divisors.
The sum of these divisors (counting 221235905) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1101001011111100101011000001
3
Ternary
120102021221121102
4
Quaternary
31023330223001
5
Quinary
423114022110
6
Senary
33541504145
8
Octal
1513745301
10
Decimal
221235905
12
Duodecimal
62112055
16
Hexadecimal
d2fcac1
20
Vigesimal
392e9f5
36
Base36
3npupt
md5
ac43f16a6fccf0f9cb8feee882d20aff
sha1
280af27eabfb3e42e3e7d18f8fd8f334f83407b8
sha256
0962b1fa9087f6413b6b6d28e9f93fffb044ca170729e21a0e6075c7daf058d3
sha512
8ff8893f8383ff054a48fefc5e176f04b1f8f28e8d3ad462f067a37c1ac51c2a59a20c0715fb01e6972d9da7d8ed961ac3b6f607cffb057458a1e0d606001edd
ripemd-160
506f6ea9a8a1578564098f49ba6bc662c5ef926a
Diameter
442471810
Circumference
1390066187.7166
Area
1.5376627552469E+17
Volume
4.5358161498912E+25
Surface area
6.1506510209875E+17
Circumference
1390066187.7166
Perimeter
884943620
Area
48945325661169025
Diagonal
312874817.33489
Surface area
293671953967014150
Volume
1.0828463418168E+25
Space diagonal
383191827.91848
Perimeter
663707715
Area
2.1193947709537E+16
Altitude
191595913.95924
Surface area
2.1193947709537E+16
Volume
1.2761466521362E+24
Height
104291605.7783