21000451 is an odd 8-digits composite number following 21000450
and preceding 21000452 . In scientific notation, it is written as 2.1000451 × 10^7.
The sum of its digits is 13. It has a total of 3 prime factors and 8 positive divisors.
There are 20597640 positive integers (up to 21000451) that are relatively prime to 21000451.
21000451 has 8 divisors, whose sum is 21406464
The reverse of 21000451 is 15400012
Previous prime number is 1303
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 13
Digital Root 4
Name
twenty-one million four hundred fifty-one
Scientific notation
2.1000451 × 10^7
Engineering notation
2.1000451 × 10^6
Prime Factorization
71 × 1303 × 227
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21000451
Product of the distinct prime numbers
The prime factorization of 21000451 is 71 × 1303 × 227.
Since it has a total of 3 prime factors.
9 , 2 , 11 , 83 , 868 , 535 , 8490 , 4839 , 40175 , 29963 , 364498 , 724279 , 5763447 , 3711346 , 97709296 , 4752841 , 31368180 , 25303006 , 1349366154 , 4634898096
n×2
42000902
n×3
63001353
n×4
84001804
n×5
105002255
n÷2
10500225.5
n÷3
7000150.3333333
n÷3
5250112.75
n÷5
4200090.2
n2
441018942203401
n3
9.2615966858144E+21
n4
1.9449770738221E+29
n5
4.0845395734924E+36
2 √n
4582.6249028259
3 √n
275.89439266334
4 √n
67.695087730395
5 √n
29.137059734758
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
-21000450
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 21000451 can be divided by 8 positive divisors.
The sum of these divisors (counting 21000451) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000111000100000011
3
Ternary
1110111221012111
4
Quaternary
1100013010003
5
Quinary
20334003301
6
Senary
2030040151
8
Octal
120070403
10
Decimal
21000451
12
Duodecimal
7049057
16
Hexadecimal
1407103
20
Vigesimal
6b512b
36
Base36
ci41v
md5
f4b8945a684b430a1bac769249843d5d
sha1
7065c42c3e463da17dd666dc70c5ea2086678cf9
sha256
c1b1eefa1bc451cda3ba3658f60b6020201c7bfb6514af692571ab839fac64a3
sha512
9a42d87c6855f9601de3dc9d7428e592b3ce048f64d61cf327ef886e0551b92dbc31a8e8c901a020ad1d2dd26c0e5f8af4111f1123bbc9fc2fe8e3fd69549019
ripemd-160
66e0d2daed68e0e1ff9dfa48a1c94e3c96a55fd0
Diameter
42000902
Circumference
131949725.16734
Area
1.3855018689201E+15
Volume
3.8794885478221E+22
Surface area
5.5420074756806E+15
Circumference
131949725.16734
Perimeter
84001804
Area
441018942203401
Diagonal
29699122.620152
Surface area
2646113653220406
Volume
9.2615966858144E+21
Space diagonal
36373848.113861
Perimeter
63001353
Area
1.9096680374914E+14
Altitude
18186924.05693
Surface area
1.9096680374914E+14
Volume
1.091489636859E+21
Height
9899707.5400505