21551289 is an odd 8-digits composite number following 21551288
and preceding 21551290 . In scientific notation, it is written as 2.1551289 × 10^7.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 14335440 positive integers (up to 21551289) that are relatively prime to 21551289.
21551289 has 8 divisors, whose sum is 28799232
The reverse of 21551289 is 98215512
Previous prime number is 461
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-one million five hundred fifty-one thousand two hundred eighty-nine
Scientific notation
2.1551289 × 10^7
Engineering notation
2.1551289 × 10^6
Prime Factorization
3 × 461 × 15583
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21551289
Product of the distinct prime numbers
The prime factorization of 21551289 is 3 × 461 × 15583.
Since it has a total of 3 prime factors.
4 , 10 , 63 , 57 , 358 , 57 , 2483 , 9425 , 15251 , 45133 , 122971 , 261825 , 4950927 , 1209544 , 68131480 , 32147567 , 959958522 , 959362084 , 2013921043 , 7440947496
n×2
43102578
n×3
64653867
n×4
86205156
n×5
107756445
n÷2
10775644.5
n÷3
7183763
n÷3
5387822.25
n÷5
4310257.8
n2
464458057561521
n3
1.0009669826887E+22
n4
2.1572128723382E+29
n5
4.6490718046281E+36
2 √n
4642.3365884003
3 √n
278.28582389959
4 √n
68.134694454443
5 √n
29.288332760552
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
-21551288
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 21551289 can be divided by 8 positive divisors.
The sum of these divisors (counting 21551289) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010001101100010111001
3
Ternary
1111112220210220
4
Quaternary
1102031202321
5
Quinary
21004120124
6
Senary
2045530253
8
Octal
122154271
10
Decimal
21551289
12
Duodecimal
7273989
16
Hexadecimal
148d8b9
20
Vigesimal
6edi49
36
Base36
ctx2x
md5
fd0480a4d2ea5b1efde1b700f6dd943d
sha1
eceaef421b41f12c9fd592a7f8b55704a256ce9e
sha256
837a4903d9a0376a79bd36e346fc5536ee29d8c40a9234bbfa8ad296686edef5
sha512
15034ca3f456692a718ef25505ee73cddff5265b746e4a75894381425e828f3d7e9263f1cf5dfcfbe67f701ba309a251d470dbca5d72c2557bbcf954c32c2ca2
ripemd-160
7c7cfcf8de7d55f8b0b9c8967c63cdf0b603fef7
Diameter
43102578
Circumference
135410742.39558
Area
1.4591380215359E+15
Volume
4.192840692401E+22
Surface area
5.8365520861434E+15
Circumference
135410742.39558
Perimeter
86205156
Area
464458057561521
Diagonal
30478125.190422
Surface area
2786748345369126
Volume
1.0009669826887E+22
Space diagonal
37327927.5166
Perimeter
64653867
Area
2.0111623842033E+14
Altitude
18663963.7583
Surface area
2.0111623842033E+14
Volume
1.179650902005E+21
Height
10159375.063474