21125655 is an odd 8-digits composite number following 21125654
and preceding 21125656 . In scientific notation, it is written as 2.1125655 × 10^7.
The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors.
There are 11188800 positive integers (up to 21125655) that are relatively prime to 21125655.
21125655 has 8 divisors, whose sum is 21745120
The reverse of 21125655 is 55652112
Previous prime number is 151
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-one million one hundred twenty-five thousand six hundred fifty-five
Scientific notation
2.1125655 × 10^7
Engineering notation
2.1125655 × 10^6
Prime Factorization
45 × 151 × 3109
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21125655
Product of the distinct prime numbers
The prime factorization of 21125655 is 45 × 151 × 3109.
Since it has a total of 3 prime factors.
10 , 6 , 38 , 16 , 316 , 368 , 1146 , 9191 , 95558 , 18695 , 27610 , 464737 , 1844410 , 378599 , 76809649 , 32199479 , 697118638 , 52973203 , 4937513996 , 6766998171
n×2
42251310
n×3
63376965
n×4
84502620
n×5
105628275
n÷2
10562827.5
n÷3
7041885
n÷3
5281413.75
n÷5
4225131
n2
446293299179025
n3
9.4282382672679E+21
n4
1.991777088921E+29
n5
4.2077595617449E+36
2 √n
4596.2653317667
3 √n
276.44159773331
4 √n
67.795761901218
5 √n
29.171720014521
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
-21125654
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 21125655 can be divided by 8 positive divisors.
The sum of these divisors (counting 21125655) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000100101101000010111
3
Ternary
1110202021221200
4
Quaternary
1100211220113
5
Quinary
20402010110
6
Senary
2032443543
8
Octal
120455027
10
Decimal
21125655
12
Duodecimal
70a95b3
16
Hexadecimal
1425a17
20
Vigesimal
6c0e2f
36
Base36
cksnr
md5
51edb4d2d93182b87c851a8289410708
sha1
c74ee25730cec562d37fedf1a8d06634d7d4e0af
sha256
e5f39d86965dac35d7bea95632ace51a80c9d4b6a8e073d356f3b077c4289314
sha512
4c84c9f64124dd974450bb54a6f8323ad30eaf3f69a3cd8ae00b25b110339bef82fea00f5c4fe2bdc26443ca193e1dcba49d65f85ef52fac9cd85948e1273bbf
ripemd-160
10daa0719a31d91f7cf34be292468050704683a6
Diameter
42251310
Circumference
132736405.10054
Area
1.4020717500472E+15
Volume
3.9492912102324E+22
Surface area
5.6082870001887E+15
Circumference
132736405.10054
Perimeter
84502620
Area
446293299179025
Diagonal
29876187.815015
Surface area
2677759795074150
Volume
9.4282382672679E+21
Space diagonal
36590707.803171
Perimeter
63376965
Area
1.932506673139E+14
Altitude
18295353.901586
Surface area
1.932506673139E+14
Volume
1.1111285355713E+21
Height
9958729.2716717