21931384 is an even 8-digits composite number following 21931383
and preceding 21931385 . In scientific notation, it is written as 2.1931384 × 10^7.
The sum of its digits is 31. It has a total of 6 prime factors and 32 positive divisors.
There are 10533600 positive integers (up to 21931384) that are relatively prime to 21931384.
21931384 has 32 divisors, whose sum is 42762240
The reverse of 21931384 is 48313912
Previous prime number is 31
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million nine hundred thirty-one thousand three hundred eighty-four
Scientific notation
2.1931384 × 10^7
Engineering notation
2.1931384 × 10^6
Prime Factorization
2 × 2 × 2 × 191 × 31 × 463
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
5482846
Product of the distinct prime numbers
The prime factorization of 21931384 is 2 × 2 × 2 × 191 × 31 × 463.
Since it has a total of 6 prime factors.
8 , 10 , 69 , 42 , 598 , 889 , 5863 , 5109 , 88294 , 46513 , 660207 , 167734 , 403904 , 3244513 , 81380899 , 69209005 , 558149334 , 327876550 , 4600846249 , 8538982529
n×2
43862768
n×3
65794152
n×4
87725536
n×5
109656920
n÷2
10965692
n÷3
7310461.3333333
n÷3
5482846
n÷5
4386276.8
n2
480985604155456
n3
1.0548679983205E+22
n4
2.3134715140479E+29
n5
5.0737632147646E+36
2 √n
4683.0955574278
3 √n
279.91231948495
4 √n
68.433146628135
5 √n
29.39092183853
1 , 2 , 4 , 8 , 31 , 62 , 124 , 191 , 248 , 382 , 463 , 764 , 926 , 1528 , 1852 , 3704 , 5921 , 11842 , 14353 , 23684 , 28706 , 47368 , 57412 , 88433 , 114824 , 176866 , 353732 , 707464 , 2741423 , 5482846 , 10965692 , 21931384
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21931383
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21931384 can be divided by 32 positive divisors.
The sum of these divisors (counting 21931384) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1010011101010010101111000
3
Ternary
1112021020012111
4
Quaternary
1103222111320
5
Quinary
21103301014
6
Senary
2102022104
8
Octal
123522570
10
Decimal
21931384
12
Duodecimal
7417934
16
Hexadecimal
14ea578
20
Vigesimal
6h1894
36
Base36
d22d4
md5
3098bb7e6a7d79729a8e5df5c8490f3d
sha1
fb38b28cf1b3c17ddf288bd9c93fbba56625080a
sha256
6f9ccd300c648e6a6fe0f93ed7569fa706f432dc942916cc8670cc5177e9608b
sha512
51012787a260f83990d177fdb2794c433f1394f56e4ac80cfed9166a1e4d8267a8e040bda5d11d5557bf33fe23c4665e4f2f02decc8043da128d38d44013d19e
ripemd-160
f04c0bb8b459da1d65196074c3d1b0c390ba9c67
Diameter
43862768
Circumference
137798949.71491
Area
1.5110608404972E+15
Volume
4.4186207387077E+22
Surface area
6.0442433619889E+15
Circumference
137798949.71491
Perimeter
87725536
Area
480985604155456
Diagonal
31015660.694412
Surface area
2885913624932736
Volume
1.0548679983205E+22
Space diagonal
37986271.368303
Perimeter
65794152
Area
2.0827287602662E+14
Altitude
18993135.684152
Surface area
2.0827287602662E+14
Volume
1.2431738581152E+21
Height
10338553.564804