21152907 is an odd 8-digits composite number following 21152906
and preceding 21152908 . In scientific notation, it is written as 2.1152907 × 10^7.
The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors.
There are 14101776 positive integers (up to 21152907) that are relatively prime to 21152907.
21152907 has 8 divisors, whose sum is 24374000
The reverse of 21152907 is 70925112
Previous prime number is 27
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-one million one hundred fifty-two thousand nine hundred seven
Scientific notation
2.1152907 × 10^7
Engineering notation
2.1152907 × 10^6
Prime Factorization
9 × 27 × 87049
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21152907
Product of the distinct prime numbers
The prime factorization of 21152907 is 9 × 27 × 87049.
Since it has a total of 3 prime factors.
3 , 10 , 31 , 76 , 671 , 440 , 2993 , 2188 , 89849 , 18137 , 808858 , 111277 , 8372607 , 818193 , 40972515 , 69819422 , 303402808 , 50455593 , 6637537869 , 2948982956
n×2
42305814
n×3
63458721
n×4
84611628
n×5
105764535
n÷2
10576453.5
n÷3
7050969
n÷3
5288226.75
n÷5
4230581.4
n2
447445474550649
n3
9.4647725107407E+21
n4
2.0020745269586E+29
n5
4.2349696275823E+36
2 √n
4599.2289571188
3 √n
276.56041612908
4 √n
67.817615389505
5 √n
29.179242411519
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
-21152906
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 21152907 can be divided by 8 positive divisors.
The sum of these divisors (counting 21152907) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000101100010010001011
3
Ternary
1110210200100000
4
Quaternary
1100230102023
5
Quinary
20403343112
6
Senary
2033214043
8
Octal
120542213
10
Decimal
21152907
12
Duodecimal
7101323
16
Hexadecimal
142c48b
20
Vigesimal
6c4257
36
Base36
cldor
md5
55e71fa862cd3d84bd6eb01781aa9c71
sha1
adef76f1020c85e4ea320010685d8b84a17634dc
sha256
e7c39bacb62d29f729a106d0535a90f758106a809c0e6a17e055ec824598a204
sha512
e2a73d2f973d6ebfc9f5485c92dc201da04ae4acdd4851a6f24c167d20c5698f5b06a15bf361da3838069e6e38604651505e40b59b07dacf33c03ac97e71eb46
ripemd-160
172b382e8785442ea64b77c44cc3447ce19f3df5
Diameter
42305814
Circumference
132907634.46654
Area
1.4056914157303E+15
Volume
3.9645946383522E+22
Surface area
5.6227656629213E+15
Circumference
132907634.46654
Perimeter
84611628
Area
447445474550649
Diagonal
29914727.963017
Surface area
2684672847303894
Volume
9.4647725107407E+21
Space diagonal
36637909.651779
Perimeter
63458721
Area
1.9374957388462E+14
Altitude
18318954.82589
Surface area
1.9374957388462E+14
Volume
1.1154341374555E+21
Height
9971575.9876723