21781341 is an odd 8-digits composite number following 21781340
and preceding 21781342 . In scientific notation, it is written as 2.1781341 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 12 positive divisors.
There are 14466816 positive integers (up to 21781341) that are relatively prime to 21781341.
21781341 has 12 divisors, whose sum is 31579132
The reverse of 21781341 is 14318712
Previous prime number is 277
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-one million seven hundred eighty-one thousand three hundred forty-one
Scientific notation
2.1781341 × 10^7
Engineering notation
2.1781341 × 10^6
Prime Factorization
3 × 3 × 277 × 8737
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
7260447
Product of the distinct prime numbers
The prime factorization of 21781341 is 3 × 3 × 277 × 8737.
Since it has a total of 4 prime factors.
10 , 1 , 100 , 59 , 742 , 386 , 6924 , 1578 , 82822 , 27228 , 257803 , 288358 , 1031762 , 2360991 , 57385983 , 78578216 , 34460357 , 456581225 , 6100021129 , 8130330427
n×2
43562682
n×3
65344023
n×4
87125364
n×5
108906705
n÷2
10890670.5
n÷3
7260447
n÷3
5445335.25
n÷5
4356268.2
n2
474426815758281
n3
1.0333652253575E+22
n4
2.2508080351054E+29
n5
4.9025617338171E+36
2 √n
4667.0484248613
3 √n
279.27252055644
4 √n
68.31579923313
5 √n
29.350595884137
1 , 3 , 9 , 277 , 831 , 2493 , 8737 , 26211 , 78633 , 2420149 , 7260447 , 21781341
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21781340
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21781341 can be divided by 12 positive divisors.
The sum of these divisors (counting 21781341) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010011000101101101011101
3
Ternary
1111222121101100
4
Quaternary
1103011231131
5
Quinary
21034000331
6
Senary
2054503313
8
Octal
123055535
10
Decimal
21781341
12
Duodecimal
7364b39
16
Hexadecimal
14c5b5d
20
Vigesimal
6g2d71
36
Base36
cyul9
md5
1811d98c7e5931f8d1c9377cfca26239
sha1
2f5dfc17254a5107b9ccaaeaa87cb01b2de23f8a
sha256
9caa7fb6647d09dc9e82e506340bcc0036cb4f70dc8be7673e5966f68e14ca6d
sha512
b24348824664b2e2ab5d13b839141bb2ba16461d73aee9e216931b840135c35f96e7ffd17596f2d1222943c5c6a2f399149c345b916878d3d0e26ec31b506585
ripemd-160
4813330d205f0988ae2db8e6c203c00ec8c78df7
Diameter
43562682
Circumference
136856201.74187
Area
1.4904557990522E+15
Volume
4.3285501339445E+22
Surface area
5.9618231962089E+15
Circumference
136856201.74187
Perimeter
87125364
Area
474426815758281
Diagonal
30803467.848873
Surface area
2846560894549686
Volume
1.0333652253575E+22
Space diagonal
37726389.268983
Perimeter
65344023
Area
2.0543283734162E+14
Altitude
18863194.634492
Surface area
2.0543283734162E+14
Volume
1.2178325971545E+21
Height
10267822.616291