21551285 is an odd 8-digits composite number following 21551284
and preceding 21551286 . In scientific notation, it is written as 2.1551285 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 14778000 positive integers (up to 21551285) that are relatively prime to 21551285.
21551285 has 4 divisors, whose sum is 22167072
The reverse of 21551285 is 58215512
Previous prime number is 35
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-one million five hundred fifty-one thousand two hundred eighty-five
Scientific notation
2.1551285 × 10^7
Engineering notation
2.1551285 × 10^6
Prime Factorization
35 × 615751
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21551285
Product of the distinct prime numbers
The prime factorization of 21551285 is 35 × 615751.
Since it has a total of 2 prime factors.
3 , 2 , 10 , 12 , 746 , 534 , 5405 , 4116 , 52822 , 36547 , 581355 , 876411 , 4600997 , 5278724 , 75299276 , 62398673 , 869108502 , 8067633 , 7195277926 , 6665596614
n×2
43102570
n×3
64653855
n×4
86205140
n×5
107756425
n÷2
10775642.5
n÷3
7183761.6666667
n÷3
5387821.25
n÷5
4310257
n2
464457885151225
n3
1.0009664253391E+22
n4
2.1572112707915E+29
n5
4.6490674902039E+36
2 √n
4642.3361575827
3 √n
278.28580668263
4 √n
68.134691292929
5 √n
29.288331673347
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
-21551284
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 21551285 can be divided by 4 positive divisors.
The sum of these divisors (counting 21551285) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010001101100010110101
3
Ternary
1111112220210202
4
Quaternary
1102031202311
5
Quinary
21004120120
6
Senary
2045530245
8
Octal
122154265
10
Decimal
21551285
12
Duodecimal
7273985
16
Hexadecimal
148d8b5
20
Vigesimal
6edi45
36
Base36
ctx2t
md5
c8b48b42b48bdf8dff5d0d114d1b3798
sha1
30c7d8d8d2a601aa1f8187af9a3a8c6dabccf2a7
sha256
53b39c51883243362c3abf85d53799c81372f846c4617d1169f8263f2ddde902
sha512
ec3d7d33525a3225c719332c45241f4d5284644f70a201f042b743b4c9df9d70ee7f700ac2a58f325e5feccb6d653f5e64f81bec77d86e6c159739edfc7f2999
ripemd-160
327c91b8302edf4756a1424140a4c221f870e22b
Diameter
43102570
Circumference
135410717.26284
Area
1.4591374798929E+15
Volume
4.1928383577806E+22
Surface area
5.8365499195718E+15
Circumference
135410717.26284
Perimeter
86205140
Area
464457885151225
Diagonal
30478119.533568
Surface area
2786747310907350
Volume
1.0009664253391E+22
Space diagonal
37327920.588397
Perimeter
64653855
Area
2.0111616376448E+14
Altitude
18663960.294199
Surface area
2.0111616376448E+14
Volume
1.1796502451623E+21
Height
10159373.177856