21000690 is an even 8-digits composite number following 21000689
and preceding 21000691 . In scientific notation, it is written as 2.1000690 × 10^7.
The sum of its digits is 18. It has a total of 4 prime factors and 16 positive divisors.
There are 5600160 positive integers (up to 21000690) that are relatively prime to 21000690.
21000690 has 16 divisors, whose sum is 42001560
The reverse of 21000690 is 09600012
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty-one million six hundred ninety
Scientific notation
2.1000690 × 10^7
Engineering notation
2.1000690 × 10^6
Prime Factorization
2 × 9 × 5 × 233341
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21000690
Product of the distinct prime numbers
The prime factorization of 21000690 is 2 × 9 × 5 × 233341.
Since it has a total of 4 prime factors.
6 , 10 , 2 , 86 , 88 , 25 , 3180 , 268 , 48272 , 88387 , 463438 , 765261 , 9289403 , 839216 , 83301047 , 14648442 , 567979911 , 391045299 , 6764049489 , 146688847
n×2
42001380
n×3
63002070
n×4
84002760
n×5
105003450
n÷2
10500345
n÷3
7000230
n÷3
5250172.5
n÷5
4200138
n2
441028980476100
n3
9.2619128999946E+21
n4
1.9450656161979E+29
n5
4.0847720035431E+36
2 √n
4582.6509795096
3 √n
275.89543928388
4 √n
67.695280334079
5 √n
29.13712605453
1 , 2 , 5 , 9 , 10 , 18 , 45 , 90 , 233341 , 466682 , 1166705 , 2100069 , 2333410 , 4200138 , 10500345 , 21000690
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21000689
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21000690 can be divided by 16 positive divisors.
The sum of these divisors (counting 21000690) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000000111000111110010
3
Ternary
1110111221112100
4
Quaternary
1100013013302
5
Quinary
20334010230
6
Senary
2030041230
8
Octal
120070762
10
Decimal
21000690
12
Duodecimal
7049216
16
Hexadecimal
14071f2
20
Vigesimal
6b51ea
36
Base36
ci48i
md5
b3557f2619ece162ba7af2db4efbd111
sha1
657901b23e236a19be37aed054c410b47ebd12ca
sha256
0022e541806782ac6cd044b4cde14ec7348e347a1394d5805b7bd05326ce34ec
sha512
12288ea9c63daf1fbe61ae72a38121eb475155cb406fb9b984fac097bda54a7c80c1e8438dec14f13d168689bc8718d93f2d25a94f3fa0208d1c75122fe421ff
ripemd-160
b94f9334e04815ba9a41bd7520fcf60706dd9cfa
Diameter
42001380
Circumference
131951226.84863
Area
1.3855334050839E+15
Volume
3.8796210033082E+22
Surface area
5.5421336203356E+15
Circumference
131951226.84863
Perimeter
84002760
Area
441028980476100
Diagonal
29699460.617193
Surface area
2646173882856600
Volume
9.2619128999946E+21
Space diagonal
36374262.074004
Perimeter
63002070
Area
1.9097115044873E+14
Altitude
18187131.037002
Surface area
1.9097115044873E+14
Volume
1.0915269030576E+21
Height
9899820.205731