21039975 is an odd 8-digits composite number following 21039974
and preceding 21039976 . In scientific notation, it is written as 2.1039975 × 10^7.
The sum of its digits is 36. It has a total of 4 prime factors and 12 positive divisors.
There are 10200000 positive integers (up to 21039975) that are relatively prime to 21039975.
21039975 has 12 divisors, whose sum is 26356200
The reverse of 21039975 is 57993012
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty-one million thirty-nine thousand nine hundred seventy-five
Scientific notation
2.1039975 × 10^7
Engineering notation
2.1039975 × 10^6
Prime Factorization
99 × 5 × 5 × 8501
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
4207995
Product of the distinct prime numbers
The prime factorization of 21039975 is 99 × 5 × 5 × 8501.
Since it has a total of 4 prime factors.
8 , 8 , 25 , 100 , 555 , 268 , 6177 , 1422 , 46545 , 39274 , 322912 , 747395 , 3904274 , 6325557 , 94918926 , 96664880 , 231236526 , 838142201 , 2361819640 , 7863118368
n×2
42079950
n×3
63119925
n×4
84159900
n×5
105199875
n÷2
10519987.5
n÷3
7013325
n÷3
5259993.75
n÷5
4207995
n2
442680548000625
n3
9.3139876629195E+21
n4
1.9596606757813E+29
n5
4.1231211626922E+36
2 √n
4586.9352513416
3 √n
276.06736698336
4 √n
67.726916741733
5 √n
29.148018996224
1 , 5 , 25 , 99 , 495 , 2475 , 8501 , 42505 , 212525 , 841599 , 4207995 , 21039975
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
-21039974
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 21039975 can be divided by 12 positive divisors.
The sum of these divisors (counting 21039975) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010000010000101101100111
3
Ternary
1110120221102100
4
Quaternary
1100100231213
5
Quinary
20341234400
6
Senary
2030543143
8
Octal
120205547
10
Decimal
21039975
12
Duodecimal
7067ab3
16
Hexadecimal
1410b67
20
Vigesimal
6b9jif
36
Base36
ciyjr
md5
2590142428ebb8dacc3bbcaad8b6180f
sha1
00ae9dfd67e022b82d5d845a3642bfd410ad5c7a
sha256
7b24db2ba25538109c247709d16ececab9ef96216ee335875a468cb33c53bc2c
sha512
985cf0057d7d098347c935d27bbd0511a1e8d4d361b5c25adb15ed634d42a01ecc8ae42769b984d5dd4cd127095c1959bb32a72d7506c37b1239fce561e0f06f
ripemd-160
e2464bc6f3253dc7c1e84130b8f7bb189d18b135
Diameter
42079950
Circumference
132198061.78343
Area
1.3907219574859E+15
Volume
3.9014340289938E+22
Surface area
5.5628878299435E+15
Circumference
132198061.78343
Perimeter
84159900
Area
442680548000625
Diagonal
29755017.996991
Surface area
2656083288003750
Volume
9.3139876629195E+21
Space diagonal
36442305.689979
Perimeter
63119925
Area
1.9168630016488E+14
Altitude
18221152.844989
Surface area
1.9168630016488E+14
Volume
1.097663972723E+21
Height
9918339.3323303