21057908 is an even 8-digits composite number following 21057907
and preceding 21057909 . In scientific notation, it is written as 2.1057908 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 6 positive divisors.
There are 10528952 positive integers (up to 21057908) that are relatively prime to 21057908.
21057908 has 6 divisors, whose sum is 36851346
The reverse of 21057908 is 80975012
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million fifty-seven thousand nine hundred eight
Scientific notation
2.1057908 × 10^7
Engineering notation
2.1057908 × 10^6
Prime Factorization
2 × 2 × 5264477
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
10528954
Product of the distinct prime numbers
The prime factorization of 21057908 is 2 × 2 × 5264477.
Since it has a total of 3 prime factors.
10 , 1 , 44 , 23 , 899 , 706 , 4806 , 4267 , 92356 , 40618 , 722 , 556051 , 555089 , 98969 , 53047215 , 44018352 , 582080195 , 700320033 , 7028268192 , 4824561720
n×2
42115816
n×3
63173724
n×4
84231632
n×5
105289540
n÷2
10528954
n÷3
7019302.6666667
n÷3
5264477
n÷5
4211581.6
n2
443435489336464
n3
9.3378237383822E+21
n4
1.9663503320307E+29
n5
4.1407224387672E+36
2 √n
4588.8896260424
3 √n
276.14577820153
4 √n
67.741343550615
5 √n
29.152986048768
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21057907
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21057908 can be divided by 6 positive divisors.
The sum of these divisors (counting 21057908) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1010000010101000101110100
3
Ternary
1110121212000112
4
Quaternary
1100111011310
5
Quinary
20342323113
6
Senary
2031202152
8
Octal
120250564
10
Decimal
21057908
12
Duodecimal
7076358
16
Hexadecimal
1415174
20
Vigesimal
6bc4f8
36
Base36
cjcdw
md5
201c7149a4ece8a52c6d18c4f154a274
sha1
d03b2c99b394af24cc3cd6bd0860518d734b0af2
sha256
c713d52d2aa9df11bce2f66a69a96edb5ac6a75f3190b97d737512588d329b61
sha512
07b6747f13009d308df04b1835723a94739c8ea99e00a5223429aa593670c6363591106e24bba704f742a78d43af8eca44f519b7cf3a54f359cf398d6976a8b2
ripemd-160
3f03949dc5c307bbd6a40c989ef7d8d0e545be5a
Diameter
42115816
Circumference
132310738.14554
Area
1.3930936756404E+15
Volume
3.9114184609357E+22
Surface area
5.5723747025617E+15
Circumference
132310738.14554
Perimeter
84231632
Area
443435489336464
Diagonal
29780379.088805
Surface area
2660612936018784
Volume
9.3378237383822E+21
Space diagonal
36473366.557111
Perimeter
63173724
Area
1.9201319935248E+14
Altitude
18236683.278556
Surface area
1.9201319935248E+14
Volume
1.1004730811558E+21
Height
9926793.0296016