21506057 is an odd 8-digits composite number following 21506056
and preceding 21506058 . In scientific notation, it is written as 2.1506057 × 10^7.
The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors.
There are 21373956 positive integers (up to 21506057) that are relatively prime to 21506057.
21506057 has 4 divisors, whose sum is 21638160
The reverse of 21506057 is 75060512
Previous prime number is 163
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million five hundred six thousand fifty-seven
Scientific notation
2.1506057 × 10^7
Engineering notation
2.1506057 × 10^6
Prime Factorization
163 × 131939
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21506057
Product of the distinct prime numbers
The prime factorization of 21506057 is 163 × 131939.
Since it has a total of 2 prime factors.
4 , 5 , 36 , 32 , 856 , 469 , 5950 , 6086 , 76216 , 25984 , 906356 , 815307 , 5377034 , 2044925 , 47440566 , 28179800 , 99160625 , 595094971 , 9027223742 , 2423826375
n×2
43012114
n×3
64518171
n×4
86024228
n×5
107530285
n÷2
10753028.5
n÷3
7168685.6666667
n÷3
5376514.25
n÷5
4301211.4
n2
462510487687249
n3
9.9467769112998E+21
n4
2.139159512207E+29
n5
4.6004886401615E+36
2 √n
4637.4623448606
3 √n
278.09099810733
4 √n
68.098915886089
5 √n
29.276028313754
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21506056
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21506057 can be divided by 4 positive divisors.
The sum of these divisors (counting 21506057) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010000010100000001001
3
Ternary
1111110121202122
4
Quaternary
1102002200021
5
Quinary
21001143212
6
Senary
2044541025
8
Octal
122024011
10
Decimal
21506057
12
Duodecimal
7251775
16
Hexadecimal
1482809
20
Vigesimal
6e852h
36
Base36
csy6h
md5
213e2b607e52cd4592c6f143f5b7e981
sha1
262921ffb2ee82e6079ab0b6f76342cdf134e739
sha256
88c07f5dcb96932d932400d158e28030c4c5b3fcaa1814a1dde3eb0e9a1f1abb
sha512
0754c0f798f292653255763d5dd31a5bc632262a29aa75f8f1f15a07cf145efa286403e53c4df8e01d1beb671387215c5c3daea2d0418ba214a2d63d536ef525
ripemd-160
c2d2ea7228104c2102fec922fe0b55d7ba8c1102
Diameter
43012114
Circumference
135126541.35777
Area
1.4530195503265E+15
Volume
4.1664961695248E+22
Surface area
5.812078201306E+15
Circumference
135126541.35777
Perimeter
86024228
Area
462510487687249
Diagonal
30414157.482569
Surface area
2775062926123494
Volume
9.9467769112998E+21
Space diagonal
37249583.394472
Perimeter
64518171
Area
2.0027291592694E+14
Altitude
18624791.697236
Surface area
2.0027291592694E+14
Volume
1.1722389008216E+21
Height
10138052.49419