21123984 is an even 8-digits composite number following 21123983
and preceding 21123985 . In scientific notation, it is written as 2.1123984 × 10^7.
The sum of its digits is 30. It has a total of 6 prime factors and 20 positive divisors.
There are 6035328 positive integers (up to 21123984) that are relatively prime to 21123984.
21123984 has 20 divisors, whose sum is 42877340
The reverse of 21123984 is 48932112
Previous prime number is 21
Is Prime? no
Number parity even
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million one hundred twenty-three thousand nine hundred eighty-four
Scientific notation
2.1123984 × 10^7
Engineering notation
2.1123984 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 21 × 62869
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
2640498
Product of the distinct prime numbers
The prime factorization of 21123984 is 2 × 2 × 2 × 2 × 21 × 62869.
Since it has a total of 6 prime factors.
5 , 9 , 95 , 74 , 846 , 435 , 7393 , 915 , 90966 , 13610 , 135937 , 877425 , 2197627 , 5851328 , 71398289 , 18206582 , 524613886 , 735953745 , 104447205 , 638901383
n×2
42247968
n×3
63371952
n×4
84495936
n×5
105619920
n÷2
10561992
n÷3
7041328
n÷3
5280996
n÷5
4224796.8
n2
446222700032256
n3
9.4260011759182E+21
n4
1.9911469802408E+29
n5
4.2060956952254E+36
2 √n
4596.0835501544
3 √n
276.43430886914
4 √n
67.794421231798
5 √n
29.171258514165
1 , 2 , 4 , 8 , 16 , 21 , 42 , 84 , 168 , 336 , 62869 , 125738 , 251476 , 502952 , 1005904 , 1320249 , 2640498 , 5280996 , 10561992 , 21123984
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21123983
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21123984 can be divided by 20 positive divisors.
The sum of these divisors (counting 21123984) is 1, the average is 0.05.
Base
System
Value
2
Binary
1010000100101001110010000
3
Ternary
1110202012122210
4
Quaternary
1100211032100
5
Quinary
20401431414
6
Senary
2032432120
8
Octal
120451620
10
Decimal
21123984
12
Duodecimal
70a8640
16
Hexadecimal
1425390
20
Vigesimal
6c09j4
36
Base36
ckrdc
md5
f29d9d7eb017147f98c45d8b10f81da3
sha1
9beff3eb3e380474ccfa9708cd90b0bd0f284f09
sha256
183fe2364f98050f9c2673e069c28ba46ccaa6ef1a3dbaf642dfd6dad60d93c3
sha512
3d35228e4add46092a6d97cf74c73f74015968782d123324ff84f79c769bf0e973b1636a51f12a2fa3257dbea6d951291b0bba61c9e00cccc9df4426bdb099ef
ripemd-160
8a3bc03e1fc4a52a5b38a4ff343e4db54bf573da
Diameter
42247968
Circumference
132725905.8979
Area
1.4018499562863E+15
Volume
3.9483541395991E+22
Surface area
5.6073998251454E+15
Circumference
132725905.8979
Perimeter
84495936
Area
446222700032256
Diagonal
29873824.664152
Surface area
2677336200193536
Volume
9.4260011759182E+21
Space diagonal
36587813.546272
Perimeter
63371952
Area
1.9322009698661E+14
Altitude
18293906.773136
Surface area
1.9322009698661E+14
Volume
1.1108648918274E+21
Height
9957941.5547174