21039904 is an even 8-digits composite number following 21039903
and preceding 21039905 . In scientific notation, it is written as 2.1039904 × 10^7.
The sum of its digits is 28. It has a total of 6 prime factors and 12 positive divisors.
There are 10519936 positive integers (up to 21039904) that are relatively prime to 21039904.
21039904 has 12 divisors, whose sum is 41422374
The reverse of 21039904 is 40993012
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million thirty-nine thousand nine hundred four
Scientific notation
2.1039904 × 10^7
Engineering notation
2.1039904 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 2 × 657497
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
1314994
Product of the distinct prime numbers
The prime factorization of 21039904 is 2 × 2 × 2 × 2 × 2 × 657497.
Since it has a total of 6 prime factors.
6 , 4 , 28 , 10 , 957 , 276 , 3729 , 2427 , 9796 , 48283 , 254996 , 416884 , 2447310 , 3950201 , 9185904 , 22432541 , 738472250 , 382952463 , 5530120960 , 5102013456
n×2
42079808
n×3
63119712
n×4
84159616
n×5
105199520
n÷2
10519952
n÷3
7013301.3333333
n÷3
5259976
n÷5
4207980.8
n2
442677560329216
n3
9.3138933722809E+21
n4
1.9596342241903E+29
n5
4.1230515952078E+36
2 √n
4586.9275119627
3 √n
276.06705645059
4 √n
67.726859605054
5 √n
29.147999324032
1 , 2 , 4 , 8 , 16 , 32 , 657497 , 1314994 , 2629988 , 5259976 , 10519952 , 21039904
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
-21039903
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 21039904 can be divided by 12 positive divisors.
The sum of these divisors (counting 21039904) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010000010000101100100000
3
Ternary
1110120221022201
4
Quaternary
1100100230200
5
Quinary
20341234104
6
Senary
2030542544
8
Octal
120205440
10
Decimal
21039904
12
Duodecimal
7067a54
16
Hexadecimal
1410b20
20
Vigesimal
6b9jf4
36
Base36
ciyhs
md5
b59c5cd5ee199a33ab6034c6933fc647
sha1
8004699d5813b4768a8147daedc74cfe78df1ebd
sha256
c491bcad00e01e9b6b3273fb4ce0cd4754e86e5d4f37930a2c881e353dea4651
sha512
78050be59c82bb03f405f87e8417a220f3f2c56896c159305938aa7fb8eed07b1b3903c3fd009649f9b7451126f7f0b0d33f94b1ff98b36a039b7e3d284a7ea3
ripemd-160
e0e5651cfcc605fd141736c9c2d3409ab78cac3a
Diameter
42079808
Circumference
132197615.67727
Area
1.3907125714393E+15
Volume
3.9013945326235E+22
Surface area
5.5628502857573E+15
Circumference
132197615.67727
Perimeter
84159616
Area
442677560329216
Diagonal
29754917.587828
Surface area
2656065361975296
Volume
9.3138933722809E+21
Space diagonal
36442182.714372
Perimeter
63119712
Area
1.9168500646521E+14
Altitude
18221091.357186
Surface area
1.9168500646521E+14
Volume
1.0976528604647E+21
Height
9918305.8626093