21552905 is an odd 8-digits composite number following 21552904
and preceding 21552906 . In scientific notation, it is written as 2.1552905 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 15168000 positive integers (up to 21552905) that are relatively prime to 21552905.
21552905 has 8 divisors, whose sum is 22654464
The reverse of 21552905 is 50925512
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-one million five hundred fifty-two thousand nine hundred five
Scientific notation
2.1552905 × 10^7
Engineering notation
2.1552905 × 10^6
Prime Factorization
55 × 31 × 12641
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21552905
Product of the distinct prime numbers
The prime factorization of 21552905 is 55 × 31 × 12641.
Since it has a total of 3 prime factors.
6 , 6 , 54 , 100 , 930 , 46 , 4660 , 905 , 59262 , 38650 , 542371 , 219015 , 82936 , 5106939 , 77877029 , 91365591 , 907604389 , 753762973 , 3113892102 , 453672273
n×2
43105810
n×3
64658715
n×4
86211620
n×5
107764525
n÷2
10776452.5
n÷3
7184301.6666667
n÷3
5388226.25
n÷5
4310581
n2
464527713939025
n3
1.0011921688395E+22
n4
2.1578599701742E+29
n5
4.6508150940467E+36
2 √n
4642.5106354213
3 √n
278.29277937917
4 √n
68.135971670046
5 √n
29.288771978144
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
-21552904
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 21552905 can be divided by 8 positive divisors.
The sum of these divisors (counting 21552905) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010001101111100001001
3
Ternary
1111120000000202
4
Quaternary
1102031330021
5
Quinary
21004143110
6
Senary
2045541545
8
Octal
122157411
10
Decimal
21552905
12
Duodecimal
72748b5
16
Hexadecimal
148df09
20
Vigesimal
6ee255
36
Base36
ctybt
md5
946e2d71ac3cb352310f8a4205226a0c
sha1
af2996059a83455629b6d5da7315a24e6bcbe114
sha256
0257f9b6fb73bb966d21e3feaf45d33dcbcba7fa9a0f9e29a8ecdc79b6862ab5
sha512
9290716229c01ec0c6bc8337ef311bc48d4444bf3c4c65059d58ae0731e85f058b8dabe0ef113134419c95969323982d83bbfb4a92dc6c46429791f131307f92
ripemd-160
e9061d5406047e6293ca1da28498dbecdda79840
Diameter
43105810
Circumference
135420896.02304
Area
1.4593568534997E+15
Volume
4.1937839499437E+22
Surface area
5.8374274139988E+15
Circumference
135420896.02304
Perimeter
86211620
Area
464527713939025
Diagonal
30480410.559539
Surface area
2787166283634150
Volume
1.0011921688395E+22
Space diagonal
37330726.510705
Perimeter
64658715
Area
2.0114640051655E+14
Altitude
18665363.255353
Surface area
2.0114640051655E+14
Volume
1.1799162864288E+21
Height
10160136.85318