221821942 is an even 9-digits composite number following 221821941
and preceding 221821943 . In scientific notation, it is written as 2.21821942 × 10^8.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 110910970 positive integers (up to 221821942) that are relatively prime to 221821942.
221821942 has 4 divisors, whose sum is 332732916
The reverse of 221821942 is 249128122
Previous prime number is 2
Is Prime? no
Number parity even
Number length 9
Sum of Digits 31
Digital Root 4
Name
two hundred twenty-one million eight hundred twenty-one thousand nine hundred forty-two
Scientific notation
2.21821942 × 10^8
Engineering notation
2.21821942 × 10^6
Prime Factorization
2 × 110910971
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
221821942
Product of the distinct prime numbers
The prime factorization of 221821942 is 2 × 110910971.
Since it has a total of 2 prime factors.
9 , 5 , 3 , 66 , 295 , 585 , 1405 , 8979 , 24516 , 55136 , 755778 , 617159 , 80826 , 5710625 , 5817446 , 82494371 , 491037066 , 839626436 , 6317329771 , 1906178113
n×2
443643884
n×3
665465826
n×4
887287768
n×5
1109109710
n÷2
110910971
n÷3
73940647.333333
n÷3
55455485.5
n÷5
44364388.4
n2
49204973952651364
n3
1.0914742878237E+25
n4
2.4211294616811E+33
n5
5.3705963902352E+41
2 √n
14893.687991898
3 √n
605.34296698116
4 √n
122.03969842595
5 √n
46.687530258026
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
-221821941
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 221821942 can be divided by 4 positive divisors.
The sum of these divisors (counting 221821942) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101001110001011101111110110
3
Ternary
120110101201111111
4
Quaternary
31032023233312
5
Quinary
423241300232
6
Senary
34002225234
8
Octal
1516135766
10
Decimal
221821942
12
Duodecimal
6235521a
16
Hexadecimal
d38bbf6
20
Vigesimal
3967eh2
36
Base36
3o2ewm
md5
d9d9f03ac826912ebdd89d3c86ff0634
sha1
b2d92768a45b5969d457522d7bbef1707100a025
sha256
a59b911d0ccd18da78db8e618dbdb4e809b50bdd2b23e9a9875889c4999cbcfd
sha512
d0844c251b9f4fa224f0627acd7329c4a02ab3e9a2903b2a306a17bed53dbf58e551fda9fefe86c3cea9cae5e056e8a06ef6c10b6639f342d92b27dd151fa8fc
ripemd-160
e2d751675d9306631bc915f70022cbe554a3b285
Diameter
443643884
Circumference
1393748366.7844
Area
1.5458198468973E+17
Volume
4.5719568056119E+25
Surface area
6.1832793875891E+17
Circumference
1393748366.7844
Perimeter
887287768
Area
49204973952651364
Diagonal
313703598.80834
Surface area
295229843715908184
Volume
1.0914742878237E+25
Space diagonal
384206873.7776
Perimeter
665465826
Area
2.1306378717774E+16
Altitude
192103436.8888
Surface area
2.1306378717774E+16
Volume
1.2863147840181E+24
Height
104567866.26945