21551451 is an odd 8-digits composite number following 21551450
and preceding 21551452 . In scientific notation, it is written as 2.1551451 × 10^7.
The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors.
There are 14349192 positive integers (up to 21551451) that are relatively prime to 21551451.
21551451 has 8 divisors, whose sum is 28772160
The reverse of 21551451 is 15415512
Previous prime number is 859
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty-one million five hundred fifty-one thousand four hundred fifty-one
Scientific notation
2.1551451 × 10^7
Engineering notation
2.1551451 × 10^6
Prime Factorization
3 × 859 × 8363
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21551451
Product of the distinct prime numbers
The prime factorization of 21551451 is 3 × 859 × 8363.
Since it has a total of 3 prime factors.
9 , 7 , 91 , 52 , 787 , 100 , 7872 , 9003 , 98030 , 76282 , 863540 , 553028 , 7765195 , 3984230 , 82603452 , 13121234 , 419355248 , 220790906 , 1566115862 , 1216301214
n×2
43102902
n×3
64654353
n×4
86205804
n×5
107757255
n÷2
10775725.5
n÷3
7183817
n÷3
5387862.75
n÷5
4310290.2
n2
464465040205401
n3
1.00098955552E+22
n4
2.15727773573E+29
n5
4.6492465414977E+36
2 √n
4642.3540364776
3 √n
278.28652118488
4 √n
68.134822495385
5 √n
29.288376792217
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
-21551450
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 21551451 can be divided by 8 positive divisors.
The sum of these divisors (counting 21551451) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010001101100101011011
3
Ternary
1111112221000220
4
Quaternary
1102031211123
5
Quinary
21004121301
6
Senary
2045531123
8
Octal
122154533
10
Decimal
21551451
12
Duodecimal
7273aa3
16
Hexadecimal
148d95b
20
Vigesimal
6edicb
36
Base36
ctx7f
md5
8282511246d4a5878aeb7764bdf6ca5f
sha1
3f9dc88528ac4fdb6f604473793f824e5aa39747
sha256
39e23e1ce3f2dcf7098b2d614c3f7e1e201aa13fb39a0aaafb7fa8ea9dda9586
sha512
25d34d40730624528bf6acda7b0c95683aa04f507b4065cb468863b03f305aef6c1dbfbe8d93f0892083e1df065a8d213430e73513e47d4c3eb6f8f409759c35
ripemd-160
b6d6396858307cfeecba598e471884d47b9ee8a8
Diameter
43102902
Circumference
135411760.2716
Area
1.4591599581586E+15
Volume
4.1929352452555E+22
Surface area
5.8366398326343E+15
Circumference
135411760.2716
Perimeter
86205804
Area
464465040205401
Diagonal
30478354.293019
Surface area
2786790241232406
Volume
1.00098955552E+22
Space diagonal
37328208.108831
Perimeter
64654353
Area
2.0111926199382E+14
Altitude
18664104.054416
Surface area
2.0111926199382E+14
Volume
1.1796775043418E+21
Height
10159451.431006