21782380 is an even 8-digits composite number following 21782379
and preceding 21782381 . In scientific notation, it is written as 2.1782380 × 10^7.
The sum of its digits is 31. It has a total of 5 prime factors and 24 positive divisors.
There are 8333952 positive integers (up to 21782380) that are relatively prime to 21782380.
21782380 has 24 divisors, whose sum is 47732832
The reverse of 21782380 is 08328712
Previous prime number is 23
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million seven hundred eighty-two thousand three hundred eighty
Scientific notation
2.1782380 × 10^7
Engineering notation
2.1782380 × 10^6
Prime Factorization
2 × 2 × 5 × 23 × 47353
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
10891190
Product of the distinct prime numbers
The prime factorization of 21782380 is 2 × 2 × 5 × 23 × 47353.
Since it has a total of 5 prime factors.
10 , 10 , 71 , 94 , 53 , 15 , 6657 , 5577 , 27470 , 23129 , 689718 , 566194 , 1245449 , 3507719 , 91040916 , 47268128 , 914569448 , 293734524 , 6859529437 , 1471401696
n×2
43564760
n×3
65347140
n×4
87129520
n×5
108911900
n÷2
10891190
n÷3
7260793.3333333
n÷3
5445595
n÷5
4356476
n2
474472078464400
n3
1.0335131112501E+22
n4
2.2512375324233E+29
n5
4.9037311401506E+36
2 √n
4667.1597358565
3 √n
279.27696104728
4 √n
68.316613908013
5 √n
29.350875891573
1 , 2 , 4 , 5 , 10 , 20 , 23 , 46 , 92 , 115 , 230 , 460 , 47353 , 94706 , 189412 , 236765 , 473530 , 947060 , 1089119 , 2178238 , 4356476 , 5445595 , 10891190 , 21782380
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21782379
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21782380 can be divided by 24 positive divisors.
The sum of these divisors (counting 21782380) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1010011000101111101101100
3
Ternary
1111222122210211
4
Quaternary
1103011331230
5
Quinary
21034014010
6
Senary
2054512204
8
Octal
123057554
10
Decimal
21782380
12
Duodecimal
7365664
16
Hexadecimal
14c5f6c
20
Vigesimal
6g2fj0
36
Base36
cyve4
md5
37c483c9206adec8cb9c682f48ba3111
sha1
66642c3b65c249fe9558f697089fe685d54f2ad6
sha256
965db7ac912b61e3cfcebb4d2924706b68842610dc526d65d6e0d6b514bfef19
sha512
7915ae5055c270a5b867c5df0a9a75f2de6684c94c279aa4b1f146974c1840e50c6067d8f99073ade5fb1f05e71296c7c5793e866298451f9e18394df20304f2
ripemd-160
fc3eef6545019dde741d560761af1c508ceb3b30
Diameter
43564760
Circumference
136862729.9714
Area
1.4905979960372E+15
Volume
4.3291695969229E+22
Surface area
5.962391984149E+15
Circumference
136862729.9714
Perimeter
87129520
Area
474472078464400
Diagonal
30804937.216764
Surface area
2846832470786400
Volume
1.0335131112501E+22
Space diagonal
37728188.869772
Perimeter
65347140
Area
2.0545243666829E+14
Altitude
18864094.434886
Surface area
2.0545243666829E+14
Volume
1.2180068823503E+21
Height
10268312.405588