21551291 is an odd 8-digits composite number following 21551290
and preceding 21551292 . In scientific notation, it is written as 2.1551291 × 10^7.
The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors.
There are 20283552 positive integers (up to 21551291) that are relatively prime to 21551291.
21551291 has 4 divisors, whose sum is 22819032
The reverse of 21551291 is 19215512
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million five hundred fifty-one thousand two hundred ninety-one
Scientific notation
2.1551291 × 10^7
Engineering notation
2.1551291 × 10^6
Prime Factorization
17 × 1267723
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21551291
Product of the distinct prime numbers
The prime factorization of 21551291 is 17 × 1267723.
Since it has a total of 2 prime factors.
3 , 7 , 73 , 35 , 515 , 123 , 4266 , 2515 , 57128 , 55269 , 213646 , 572805 , 8811075 , 7777360 , 23218062 , 42374799 , 711526623 , 652627580 , 2159473949 , 7624548745
n×2
43102582
n×3
64653873
n×4
86205164
n×5
107756455
n÷2
10775645.5
n÷3
7183763.6666667
n÷3
5387822.75
n÷5
4310258.2
n2
464458143766681
n3
1.0009672613636E+22
n4
2.1572136731119E+29
n5
4.6490739618414E+36
2 √n
4642.336803809
3 √n
278.28583250807
4 √n
68.1346960352
5 √n
29.288333304155
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
-21551290
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 21551291 can be divided by 4 positive divisors.
The sum of these divisors (counting 21551291) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010001101100010111011
3
Ternary
1111112220210222
4
Quaternary
1102031202323
5
Quinary
21004120131
6
Senary
2045530255
8
Octal
122154273
10
Decimal
21551291
12
Duodecimal
727398b
16
Hexadecimal
148d8bb
20
Vigesimal
6edi4b
36
Base36
ctx2z
md5
355e48602eacf323db886e6474fda4b4
sha1
0a343effd2a8a6ddffeac5e0fdce9677ba9a3941
sha256
cce008bb7dfad6777bee5760b53c4a77e88c03e09601721d0baacc12680969c5
sha512
9ebfa903d4339158c48f60a094fd468063bd3ceb4e8d769385d2fec01cfbb1eebf4f36517effbf6867b25de3762996b9fe578b1976a5cc3be1c2b87ef8759a40
ripemd-160
eeb8f7c8f4ef763aa6e0ae85a06b11a14f2dd4d8
Diameter
43102582
Circumference
135410754.96195
Area
1.4591382923574E+15
Volume
4.1928418597115E+22
Surface area
5.8365531694294E+15
Circumference
135410754.96195
Perimeter
86205164
Area
464458143766681
Diagonal
30478128.018849
Surface area
2786748862600086
Volume
1.0009672613636E+22
Space diagonal
37327930.980702
Perimeter
64653873
Area
2.0111627574826E+14
Altitude
18663965.490351
Surface area
2.0111627574826E+14
Volume
1.1796512304265E+21
Height
10159376.006283