21000769 is an odd 8-digits composite number following 21000768
and preceding 21000770 . In scientific notation, it is written as 2.1000769 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 20944980 positive integers (up to 21000769) that are relatively prime to 21000769.
21000769 has 4 divisors, whose sum is 21056560
The reverse of 21000769 is 96700012
Previous prime number is 379
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-one million seven hundred sixty-nine
Scientific notation
2.1000769 × 10^7
Engineering notation
2.1000769 × 10^6
Prime Factorization
379 × 55411
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21000769
Product of the distinct prime numbers
The prime factorization of 21000769 is 379 × 55411.
Since it has a total of 2 prime factors.
4 , 2 , 15 , 39 , 518 , 783 , 6935 , 2741 , 35850 , 48561 , 68551 , 925898 , 2807136 , 500954 , 77788866 , 1887882 , 942379543 , 708373119 , 5751832207 , 6513586788
n×2
42001538
n×3
63002307
n×4
84003076
n×5
105003845
n÷2
10500384.5
n÷3
7000256.3333333
n÷3
5250192.25
n÷5
4200153.8
n2
441032298591361
n3
9.2620174242562E+21
n4
1.9450948840078E+29
n5
4.0848488342129E+36
2 √n
4582.6595989665
3 √n
275.8957852362
4 √n
67.695343997697
5 √n
29.137147975995
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21000768
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21000769 can be divided by 4 positive divisors.
The sum of these divisors (counting 21000769) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000000111001001000001
3
Ternary
1110111221122021
4
Quaternary
1100013021001
5
Quinary
20334011034
6
Senary
2030041441
8
Octal
120071101
10
Decimal
21000769
12
Duodecimal
7049281
16
Hexadecimal
1407241
20
Vigesimal
6b51i9
36
Base36
ci4ap
md5
25efdfda5f77170eea68f2a0f5c805a4
sha1
881d8e8a78d6a201280b1c3a5f3ea1e6e943dd22
sha256
23e657fbc5fc608ea7143a6b3339c6be01926e3321a8324f7faf99ef3bcdf046
sha512
6ac193fba5a7f98208b5ae46b3c346d61bf3dfec3f1a464bbd7e842831a07f441beaab0df9bc1330cdcde0359f40d0637aa6f6b6e745122b1e05951e9ff20cbd
ripemd-160
d07cd98b1333465f7a83331baf89865c58e339e4
Diameter
42001538
Circumference
131951723.22027
Area
1.3855438292504E+15
Volume
3.8796647863285E+22
Surface area
5.5421753170018E+15
Circumference
131951723.22027
Perimeter
84003076
Area
441032298591361
Diagonal
29699572.340064
Surface area
2646193791548166
Volume
9.2620174242562E+21
Space diagonal
36374398.906017
Perimeter
63002307
Area
1.9097258723478E+14
Altitude
18187199.453009
Surface area
1.9097258723478E+14
Volume
1.0915392213599E+21
Height
9899857.4466882