21551261 is an odd 8-digits composite number following 21551260
and preceding 21551262 . In scientific notation, it is written as 2.1551261 × 10^7.
The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors.
There are 21222432 positive integers (up to 21551261) that are relatively prime to 21551261.
21551261 has 8 divisors, whose sum is 21882240
The reverse of 21551261 is 16215512
Previous prime number is 523
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty-one million five hundred fifty-one thousand two hundred sixty-one
Scientific notation
2.1551261 × 10^7
Engineering notation
2.1551261 × 10^6
Prime Factorization
89 × 523 × 463
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21551261
Product of the distinct prime numbers
The prime factorization of 21551261 is 89 × 523 × 463.
Since it has a total of 3 prime factors.
5 , 10 , 3 , 25 , 943 , 592 , 4307 , 5717 , 21233 , 37645 , 861646 , 825906 , 9389565 , 7742777 , 86513720 , 28474422 , 932848540 , 935196422 , 3447233022 , 6716637496
n×2
43102522
n×3
64653783
n×4
86205044
n×5
107756305
n÷2
10775630.5
n÷3
7183753.6666667
n÷3
5387815.25
n÷5
4310252.2
n2
464456850690121
n3
1.0009630812461E+22
n4
2.1572016615299E+29
n5
4.6490416037264E+36
2 √n
4642.3335726766
3 √n
278.28570338079
4 √n
68.134672323836
5 √n
29.288325150114
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
-21551260
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 21551261 can be divided by 8 positive divisors.
The sum of these divisors (counting 21551261) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010001101100010011101
3
Ternary
1111112220202212
4
Quaternary
1102031202131
5
Quinary
21004120021
6
Senary
2045530205
8
Octal
122154235
10
Decimal
21551261
12
Duodecimal
7273965
16
Hexadecimal
148d89d
20
Vigesimal
6edi31
36
Base36
ctx25
md5
ab93a77627877405fde29b8a704f1702
sha1
ea01c0b61d4cbd40d87f7da01d353c675ff33216
sha256
6d0d7a9d84b7e6c353b9adc6d6ac189e857b8acf3b16bf87c373ee7a091911c9
sha512
93c484e4b7799256d8055e5f77e8dc1a84b86338db5cb38e610ddb2dbbd9e1bea4ace49348a0f46cd6f48bb9a1061e46e9e1ade6de90a8a1adc0b6f02cc419d2
ripemd-160
acdf0d7998a01da9804c368ac5efd34416958b9c
Diameter
43102522
Circumference
135410566.46639
Area
1.4591342300375E+15
Volume
4.1928243500764E+22
Surface area
5.8365369201501E+15
Circumference
135410566.46639
Perimeter
86205044
Area
464456850690121
Diagonal
30478085.592442
Surface area
2786741104140726
Volume
1.0009630812461E+22
Space diagonal
37327879.019178
Perimeter
64653783
Area
2.0111571582968E+14
Altitude
18663939.509589
Surface area
2.0111571582968E+14
Volume
1.1796463041108E+21
Height
10159361.864147