221471721 is an odd 9-digits composite number following 221471720
and preceding 221471722 . In scientific notation, it is written as 2.21471721 × 10^8.
The sum of its digits is 27. It has a total of 2 prime factors and 4 positive divisors.
There are 147647808 positive integers (up to 221471721) that are relatively prime to 221471721.
221471721 has 4 divisors, whose sum is 246079700
The reverse of 221471721 is 127174122
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 27
Digital Root 9
Name
two hundred twenty-one million four hundred seventy-one thousand seven hundred twenty-one
Scientific notation
2.21471721 × 10^8
Engineering notation
2.21471721 × 10^6
Prime Factorization
9 × 24607969
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
221471721
Product of the distinct prime numbers
The prime factorization of 221471721 is 9 × 24607969.
Since it has a total of 2 prime factors.
8 , 7 , 48 , 66 , 994 , 9 , 8074 , 8128 , 99480 , 28149 , 443025 , 699770 , 5935782 , 2069329 , 95856270 , 66705671 , 285992928 , 707289903 , 674279108 , 6963907172
n×2
442943442
n×3
664415163
n×4
885886884
n×5
1107358605
n÷2
110735860.5
n÷3
73823907
n÷3
55367930.25
n÷5
44294344.2
n2
49049723202701841
n3
1.0863126612276E+25
n4
2.4058753462617E+33
n5
5.3283335344804E+41
2 √n
14881.925984227
3 √n
605.02421959823
4 √n
121.99149963922
5 √n
46.672778525726
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
-221471720
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 221471721 can be divided by 4 positive divisors.
The sum of these divisors (counting 221471721) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101001100110110001111101001
3
Ternary
120102201221002100
4
Quaternary
31030312033221
5
Quinary
423144043341
6
Senary
33550524013
8
Octal
1514661751
10
Decimal
221471721
12
Duodecimal
62206609
16
Hexadecimal
d3363e9
20
Vigesimal
3943j61
36
Base36
3nuwo9
md5
afd0bb6dbdec09a564675e2345713d08
sha1
3bae34dc2b8e6de658d4a1a7192f2adabea707ba
sha256
37ff6b77051f7ebe1005e9d99f427e2c8c870bc91e3bca9ebd98f51a08447670
sha512
9ff5187477a5a3b2bc58fe60241e8410542d89b81f3b755552509f7cfaa8e028498650351a78e35e549a08516987913260612b568f418b15a6d6c4bee0dbaba7
ripemd-160
75ce62fbdf68cb276b77438ea12078d127b7561f
Diameter
442943442
Circumference
1391547863.343
Area
1.5409425007422E+17
Volume
4.5503358346856E+25
Surface area
6.1637700029688E+17
Circumference
1391547863.343
Perimeter
885886884
Area
49049723202701841
Diagonal
313208311.52031
Surface area
294298339216211046
Volume
1.0863126612276E+25
Space diagonal
383600273.21172
Perimeter
664415163
Area
2.1239153171067E+16
Altitude
191800136.60586
Surface area
2.1239153171067E+16
Volume
1.2802317487381E+24
Height
104402770.50677