21882981 is an odd 8-digits composite number following 21882980
and preceding 21882982 . In scientific notation, it is written as 2.1882981 × 10^7.
The sum of its digits is 39. It has a total of 4 prime factors and 12 positive divisors.
There are 14373240 positive integers (up to 21882981) that are relatively prime to 21882981.
21882981 has 12 divisors, whose sum is 29614496
The reverse of 21882981 is 18928812
Previous prime number is 71
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty-one million eight hundred eighty-two thousand nine hundred eighty-one
Scientific notation
2.1882981 × 10^7
Engineering notation
2.1882981 × 10^6
Prime Factorization
3 × 71 × 71 × 1447
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
308211
Product of the distinct prime numbers
The prime factorization of 21882981 is 3 × 71 × 71 × 1447.
Since it has a total of 4 prime factors.
3 , 2 , 36 , 75 , 669 , 363 , 8428 , 2913 , 69788 , 45655 , 345168 , 289450 , 9833003 , 2000694 , 30742671 , 47794028 , 287059482 , 773097760 , 5530646819 , 4550363105
n×2
43765962
n×3
65648943
n×4
87531924
n×5
109414905
n÷2
10941490.5
n÷3
7294327
n÷3
5470745.25
n÷5
4376596.2
n2
478864857446361
n3
1.0478990577066E+22
n4
2.2931155169712E+29
n5
5.0180203288687E+36
2 √n
4677.9248604483
3 √n
279.70624379027
4 √n
68.395357009436
5 √n
29.377937100806
1 , 3 , 71 , 213 , 1447 , 4341 , 5041 , 15123 , 102737 , 308211 , 7294327 , 21882981
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21882980
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21882981 can be divided by 12 positive divisors.
The sum of these divisors (counting 21882981) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010011011110100001100101
3
Ternary
1112011202210210
4
Quaternary
1103132201211
5
Quinary
21100223411
6
Senary
2101010033
8
Octal
123364145
10
Decimal
21882981
12
Duodecimal
73b3919
16
Hexadecimal
14de865
20
Vigesimal
6gf791
36
Base36
d110l
md5
329d64ae2deffa7aacdca95d593b0e96
sha1
3281fbe4c19efb99b32afdd0f841f550453dc484
sha256
e796b3f4662ff627a1603b9e40ced0c30b5b421e0a5d0ec33b1b5a906add2080
sha512
105534dcbda6412d6d91d0196d70362c84004c6d45553930bbbe17e728f13c95f136835399ab498e25e33687a1706bde943a36b32b6e73e1aee3e20579c32f81
ripemd-160
e3294fb8234496b4128c810f2c359ff3dc0d0476
Diameter
43765962
Circumference
137494824.69649
Area
1.5043983182158E+15
Volume
4.3894293085265E+22
Surface area
6.0175932728632E+15
Circumference
137494824.69649
Perimeter
87531924
Area
478864857446361
Diagonal
30947208.515353
Surface area
2873189144678166
Volume
1.0478990577066E+22
Space diagonal
37902434.913064
Perimeter
65648943
Area
2.0735456576408E+14
Altitude
18951217.456532
Surface area
2.0735456576408E+14
Volume
1.2349608828389E+21
Height
10315736.171784