221444991 is an odd 9-digits composite number following 221444990
and preceding 221444992 . In scientific notation, it is written as 2.21444991 × 10^8.
The sum of its digits is 36. It has a total of 2 prime factors and 4 positive divisors.
There are 147629988 positive integers (up to 221444991) that are relatively prime to 221444991.
221444991 has 4 divisors, whose sum is 246050000
The reverse of 221444991 is 199444122
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 36
Digital Root 9
Name
two hundred twenty-one million four hundred forty-four thousand nine hundred ninety-one
Scientific notation
2.21444991 × 10^8
Engineering notation
2.21444991 × 10^6
Prime Factorization
9 × 24604999
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
221444991
Product of the distinct prime numbers
The prime factorization of 221444991 is 9 × 24604999.
Since it has a total of 2 prime factors.
10 , 6 , 21 , 40 , 441 , 866 , 4870 , 382 , 86158 , 33972 , 638695 , 578502 , 4457702 , 4497157 , 40789011 , 73306522 , 877670332 , 677017587 , 3897662760 , 7447003291
n×2
442889982
n×3
664334973
n×4
885779964
n×5
1107224955
n÷2
110722495.5
n÷3
73814997
n÷3
55361247.75
n÷5
44288998.2
n2
49037884038990081
n3
1.0859193789673E+25
n4
2.4047140710214E+33
n5
5.3251188581492E+41
2 √n
14881.027887885
3 √n
604.99987796824
4 √n
121.9878186045
5 √n
46.671651859444
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
-221444990
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 221444991 can be divided by 4 positive divisors.
The sum of these divisors (counting 221444991) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101001100101111101101111111
3
Ternary
120102200120102100
4
Quaternary
31030233231333
5
Quinary
423142214431
6
Senary
33550200143
8
Octal
1514575577
10
Decimal
221444991
12
Duodecimal
621b3053
16
Hexadecimal
d32fb7f
20
Vigesimal
3940c9b
36
Base36
3nuc1r
md5
2edf6e51f4820fe3fef8060d2e83e257
sha1
20ce3e51acacf57a0f9e55fc4590c19ece276f31
sha256
f1b2d06b15fcb549ca2b80ef92de15946b82c473e33b650610a946e48de84ac1
sha512
5e95a4f048606b08a9fac13198a221564711bc7e28caf994a4a611394a1f84bc7bd74a5f510660dd2e1453ae5bcc1d67a2d0fe62d92087753da1b6fc8f498eb4
ripemd-160
5b99dbdaba8b8d3bc7232161ddcc9fe5515015dc
Diameter
442889982
Circumference
1391379913.7997
Area
1.5405705624448E+17
Volume
4.548688457806E+25
Surface area
6.1622822497792E+17
Circumference
1391379913.7997
Perimeter
885779964
Area
49037884038990081
Diagonal
313170509.59179
Surface area
294227304233940486
Volume
1.0859193789673E+25
Space diagonal
383553975.49363
Perimeter
664334973
Area
2.12340266628E+16
Altitude
191776987.74682
Surface area
2.12340266628E+16
Volume
1.2797682611495E+24
Height
104390169.86393