21000678 is an even 8-digits composite number following 21000677
and preceding 21000679 . In scientific notation, it is written as 2.1000678 × 10^7.
The sum of its digits is 24. It has a total of 5 prime factors and 32 positive divisors.
There are 6552192 positive integers (up to 21000678) that are relatively prime to 21000678.
21000678 has 32 divisors, whose sum is 44717184
The reverse of 21000678 is 87600012
Previous prime number is 227
Is Prime? no
Number parity even
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty-one million six hundred seventy-eight
Scientific notation
2.1000678 × 10^7
Engineering notation
2.1000678 × 10^6
Prime Factorization
2 × 3 × 17 × 227 × 907
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
21000678
Product of the distinct prime numbers
The prime factorization of 21000678 is 2 × 3 × 17 × 227 × 907.
Since it has a total of 5 prime factors.
8 , 8 , 66 , 33 , 564 , 578 , 5823 , 285 , 53661 , 83833 , 157373 , 717724 , 5598661 , 9475446 , 8045287 , 2105389 , 382033994 , 905663428 , 1990309166 , 9959127317
n×2
42001356
n×3
63002034
n×4
84002712
n×5
105003390
n÷2
10500339
n÷3
7000226
n÷3
5250169.5
n÷5
4200135.6
n2
441028476459684
n3
9.2618970229604E+21
n4
1.9450611704835E+29
n5
4.0847603331627E+36
2 √n
4582.6496702235
3 √n
275.89538673408
4 √n
67.695270663641
5 √n
29.137122724681
1 , 2 , 3 , 6 , 17 , 34 , 51 , 102 , 227 , 454 , 681 , 907 , 1362 , 1814 , 2721 , 3859 , 5442 , 7718 , 11577 , 15419 , 23154 , 30838 , 46257 , 92514 , 205889 , 411778 , 617667 , 1235334 , 3500113 , 7000226 , 10500339 , 21000678
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
-21000677
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 21000678 can be divided by 32 positive divisors.
The sum of these divisors (counting 21000678) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1010000000111000111100110
3
Ternary
1110111221111220
4
Quaternary
1100013013212
5
Quinary
20334010203
6
Senary
2030041210
8
Octal
120070746
10
Decimal
21000678
12
Duodecimal
7049206
16
Hexadecimal
14071e6
20
Vigesimal
6b51di
36
Base36
ci486
md5
79fdcf7638c2465c32bf98507dd4d744
sha1
a371aca6c844cd47dd89aad4282815040a6271db
sha256
089aca6d07e1e97430dc703f34da9f2eb392ab7242ce090a154fff1afaa6ad2e
sha512
9fef7642fb3256c5b5e09cfca7c84530015efc76bf8a6e3d89d3a954ebca1f1f95c7e24fe985802fa132883299432efdaeb5a9dbd6838cea2f142dcfb51cf4cc
ripemd-160
9fdc9f13e01a7a7632adc75dea9b5b76e06ad47a
Diameter
42001356
Circumference
131951151.45041
Area
1.3855318216696E+15
Volume
3.8796143527517E+22
Surface area
5.5421272866786E+15
Circumference
131951151.45041
Perimeter
84002712
Area
441028476459684
Diagonal
29699443.64663
Surface area
2646170858758104
Volume
9.2618970229604E+21
Space diagonal
36374241.289394
Perimeter
63002034
Area
1.9097093220322E+14
Altitude
18187120.644697
Surface area
1.9097093220322E+14
Volume
1.0915250319311E+21
Height
9899814.5488768