21506771 is an odd 8-digits composite number following 21506770
and preceding 21506772 . In scientific notation, it is written as 2.1506771 × 10^7.
The sum of its digits is 29. It has a total of 4 prime factors and 16 positive divisors.
There are 17228640 positive integers (up to 21506771) that are relatively prime to 21506771.
21506771 has 16 divisors, whose sum is 24675840
The reverse of 21506771 is 17760512
Previous prime number is 169
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-one million five hundred six thousand seven hundred seventy-one
Scientific notation
2.1506771 × 10^7
Engineering notation
2.1506771 × 10^6
Prime Factorization
11 × 23 × 169 × 503
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21506771
Product of the distinct prime numbers
The prime factorization of 21506771 is 11 × 23 × 169 × 503.
Since it has a total of 4 prime factors.
3 , 2 , 74 , 1 , 339 , 337 , 6320 , 2137 , 16248 , 3379 , 297864 , 776533 , 4548465 , 3947631 , 65233638 , 79697497 , 298888239 , 396843657 , 1008685129 , 6109604071
n×2
43013542
n×3
64520313
n×4
86027084
n×5
107533855
n÷2
10753385.5
n÷3
7168923.6666667
n÷3
5376692.75
n÷5
4301354.2
n2
462541198846441
n3
9.9477676416559E+21
n4
2.139443606303E+29
n5
4.6012523708173E+36
2 √n
4637.5393259788
3 √n
278.09407560894
4 √n
68.099481099189
5 √n
29.276222703704
1 , 11 , 23 , 169 , 253 , 503 , 1859 , 3887 , 5533 , 11569 , 42757 , 85007 , 127259 , 935077 , 1955161 , 21506771
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21506770
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21506771 can be divided by 16 positive divisors.
The sum of these divisors (counting 21506771) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010010000010101011010011
3
Ternary
1111110122202002
4
Quaternary
1102002223103
5
Quinary
21001204041
6
Senary
2044544215
8
Octal
122025323
10
Decimal
21506771
12
Duodecimal
725206b
16
Hexadecimal
1482ad3
20
Vigesimal
6e86ib
36
Base36
csyqb
md5
0a3341b0cc665bd5b412355b6e2c7d52
sha1
49a1ba4a76cef9ecac437d8e717710210d0f7f10
sha256
bfea5dd29073177d8f5ada20a155e496638591b77308a5721def2a73ab079639
sha512
996869ea40f67f39a9115589edb9a5690ff86932628bb7ce2aa4e38d4aa0c891a1131e4cb7b641210bd0a3193f8751320191510a2cee6c33910e5cce53a1f447
ripemd-160
08b092a219f52304ad9b722b553b38ee1a5bcc2c
Diameter
43013542
Circumference
135131027.55208
Area
1.4531160322786E+15
Volume
4.1669111656859E+22
Surface area
5.8124641291144E+15
Circumference
135131027.55208
Perimeter
86027084
Area
462541198846441
Diagonal
30415167.231052
Surface area
2775247193078646
Volume
9.9477676416559E+21
Space diagonal
37250820.078749
Perimeter
64520313
Area
2.0028621424896E+14
Altitude
18625410.039374
Surface area
2.0028621424896E+14
Volume
1.1723556595138E+21
Height
10138389.077017