21931415 is an odd 8-digits composite number following 21931414
and preceding 21931416 . In scientific notation, it is written as 2.1931415 × 10^7.
The sum of its digits is 26. It has a total of 5 prime factors and 32 positive divisors.
There are 14601600 positive integers (up to 21931415) that are relatively prime to 21931415.
21931415 has 32 divisors, whose sum is 31242240
The reverse of 21931415 is 51413912
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million nine hundred thirty-one thousand four hundred fifteen
Scientific notation
2.1931415 × 10^7
Engineering notation
2.1931415 × 10^6
Prime Factorization
11 × 31 × 5 × 19 × 677
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
21931415
Product of the distinct prime numbers
The prime factorization of 21931415 is 11 × 31 × 5 × 19 × 677.
Since it has a total of 5 prime factors.
3 , 8 , 5 , 2 , 730 , 116 , 3195 , 3641 , 40193 , 60718 , 699883 , 667806 , 1868142 , 8995663 , 81945882 , 21847020 , 123601427 , 42639735 , 2577450490 , 8328473351
n×2
43862830
n×3
65794245
n×4
87725660
n×5
109657075
n÷2
10965707.5
n÷3
7310471.6666667
n÷3
5482853.75
n÷5
4386283
n2
480986963902225
n3
1.054872471493E+22
n4
2.3134845944388E+29
n5
5.0737990736744E+36
2 √n
4683.0988672032
3 √n
279.9124513702
4 √n
68.433170810676
5 √n
29.390930147335
1 , 5 , 11 , 19 , 31 , 55 , 95 , 155 , 209 , 341 , 589 , 677 , 1045 , 1705 , 2945 , 3385 , 6479 , 7447 , 12863 , 20987 , 32395 , 37235 , 64315 , 104935 , 141493 , 230857 , 398753 , 707465 , 1154285 , 1993765 , 4386283 , 21931415
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
-21931414
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 21931415 can be divided by 32 positive divisors.
The sum of these divisors (counting 21931415) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1010011101010010110010111
3
Ternary
1112021020020122
4
Quaternary
1103222112113
5
Quinary
21103301130
6
Senary
2102022155
8
Octal
123522627
10
Decimal
21931415
12
Duodecimal
741795b
16
Hexadecimal
14ea597
20
Vigesimal
6h18af
36
Base36
d22dz
md5
773b42d709a7589f4f254091c2dc488b
sha1
1b33b86cf5643bb824757caec88424f570c4dc6d
sha256
45377f3a26ed86cbd0426523539e4f0100b56c766059517f97a2f03a536f385a
sha512
3f062460fa0b35dbb2b809fac7a29a5986c76f88a45aaf03da7b9a73e4e6e64d94428ce78c28e8051c732d064aef4bd37162f7cf606f74bc89798fe81a82c7a3
ripemd-160
9b9e8eab1d598a0675f7d457592485f7962ab571
Diameter
43862830
Circumference
137799144.49366
Area
1.5110651122677E+15
Volume
4.4186394758886E+22
Surface area
6.0442604490708E+15
Circumference
137799144.49366
Perimeter
87725660
Area
480986963902225
Diagonal
31015704.535033
Surface area
2885921783413350
Volume
1.054872471493E+22
Space diagonal
37986325.061878
Perimeter
65794245
Area
2.0827346481424E+14
Altitude
18993162.530939
Surface area
2.0827346481424E+14
Volume
1.2431791297995E+21
Height
10338568.178344