21082221 is an odd 8-digits composite number following 21082220
and preceding 21082222 . In scientific notation, it is written as 2.1082221 × 10^7.
The sum of its digits is 18. It has a total of 3 prime factors and 8 positive divisors.
There are 14054796 positive integers (up to 21082221) that are relatively prime to 21082221.
21082221 has 8 divisors, whose sum is 31232960
The reverse of 21082221 is 12228012
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty-one million eighty-two thousand two hundred twenty-one
Scientific notation
2.1082221 × 10^7
Engineering notation
2.1082221 × 10^6
Prime Factorization
3 × 9 × 780823
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21082221
Product of the distinct prime numbers
The prime factorization of 21082221 is 3 × 9 × 780823.
Since it has a total of 3 prime factors.
10 , 9 , 22 , 29 , 679 , 905 , 4046 , 9079 , 3235 , 63784 , 145979 , 620655 , 6907539 , 5023002 , 6614475 , 49800005 , 778363950 , 4441888 , 4721136044 , 5481151715
n×2
42164442
n×3
63246663
n×4
84328884
n×5
105411105
n÷2
10541110.5
n÷3
7027407
n÷3
5270555.25
n÷5
4216444.2
n2
444460042292841
n3
9.370204837287E+21
n4
1.9754472919495E+29
n5
4.1646816382732E+36
2 √n
4591.537977628
3 √n
276.25201461782
4 √n
67.760888258847
5 √n
29.159714821939
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
-21082220
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 21082221 can be divided by 8 positive divisors.
The sum of these divisors (counting 21082221) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000011011000001101101
3
Ternary
1110200002101000
4
Quaternary
1100123001231
5
Quinary
20344112341
6
Senary
2031510513
8
Octal
120330155
10
Decimal
21082221
12
Duodecimal
7088439
16
Hexadecimal
141b06d
20
Vigesimal
6bf5b1
36
Base36
cjv59
md5
6248d93f8c0517178897cd54c3141a51
sha1
5baf1b19fe93d24c5f618bcf97df9219b25e0fae
sha256
330f892961dbaaf489e7727e16dfb844ffb27a8e4db0a3cacee989f1c112e03d
sha512
2fec832c48b0c7a0705c3812a0f07c75d50d1cb5006d3b9c4176047fce9932358a9763e6bffc7a56ce9e81a347ecc001e3ee8fd4d03ef84e9305422c5bee5886
ripemd-160
d7a5529ac3d1bdb0d358535273bbe4c9aaa33f05
Diameter
42164442
Circumference
132463501.22991
Area
1.3963124036814E+15
Volume
3.924982223927E+22
Surface area
5.5852496147256E+15
Circumference
132463501.22991
Perimeter
84328884
Area
444460042292841
Diagonal
29814762.863147
Surface area
2666760253757046
Volume
9.370204837287E+21
Space diagonal
36515477.908396
Perimeter
63246663
Area
1.9245684379635E+14
Altitude
18257738.954198
Surface area
1.9245684379635E+14
Volume
1.1042892302588E+21
Height
9938254.2877156