21789730 is an even 8-digits composite number following 21789729
and preceding 21789731 . In scientific notation, it is written as 2.1789730 × 10^7.
The sum of its digits is 37. It has a total of 5 prime factors and 32 positive divisors.
There are 8352960 positive integers (up to 21789730) that are relatively prime to 21789730.
21789730 has 32 divisors, whose sum is 40875840
The reverse of 21789730 is 03798712
Previous prime number is 29
Is Prime? no
Number parity even
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty-one million seven hundred eighty-nine thousand seven hundred thirty
Scientific notation
2.1789730 × 10^7
Engineering notation
2.1789730 × 10^6
Prime Factorization
2 × 331 × 5 × 29 × 227
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
21789730
Product of the distinct prime numbers
The prime factorization of 21789730 is 2 × 331 × 5 × 29 × 227.
Since it has a total of 5 prime factors.
1 , 7 , 14 , 79 , 263 , 265 , 1224 , 2033 , 26693 , 25815 , 814774 , 423277 , 5611260 , 9163457 , 46110781 , 80177176 , 265907926 , 19367076 , 8359553134 , 4280689679
n×2
43579460
n×3
65369190
n×4
87158920
n×5
108948650
n÷2
10894865
n÷3
7263243.3333333
n÷3
5447432.5
n÷5
4357946
n2
474792333472900
n3
1.0345596752444E+22
n4
2.2542775992464E+29
n5
4.9120100232628E+36
2 √n
4667.9470862468
3 √n
279.30836953476
4 √n
68.322376175356
5 √n
29.352856389815
1 , 2 , 5 , 10 , 29 , 58 , 145 , 227 , 290 , 331 , 454 , 662 , 1135 , 1655 , 2270 , 3310 , 6583 , 9599 , 13166 , 19198 , 32915 , 47995 , 65830 , 75137 , 95990 , 150274 , 375685 , 751370 , 2178973 , 4357946 , 10894865 , 21789730
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
-21789729
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 21789730 can be divided by 32 positive divisors.
The sum of these divisors (counting 21789730) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1010011000111110000100010
3
Ternary
1112000000220001
4
Quaternary
1103013300202
5
Quinary
21034232410
6
Senary
2055010214
8
Octal
123076042
10
Decimal
21789730
12
Duodecimal
736996a
16
Hexadecimal
14c7c22
20
Vigesimal
6g3e6a
36
Base36
cz12a
md5
d705dbcdd0bb77da78fd0a060dc05493
sha1
6164972fceba4fa1b9760d652e813712992ff828
sha256
953f21dae08b3af100fb195f90f348318592ccdeefd031b1a6d26ad49e423458
sha512
5f41b5c76b9a3ebd8cd8537e7bdce02848b84afc39aa365df9c1e97b25d6c30e06e14843743bd07eb9b16fe7caee30e1b3c46d4351e5e716d66956869be9e63b
ripemd-160
7f5e6c5587c73154d0510095896c036778f22eab
Diameter
43579460
Circumference
136908911.38341
Area
1.4916041068192E+15
Volume
4.3335534339309E+22
Surface area
5.9664164272769E+15
Circumference
136908911.38341
Perimeter
87158920
Area
474792333472900
Diagonal
30815331.686448
Surface area
2848754000837400
Volume
1.0345596752444E+22
Space diagonal
37740919.443208
Perimeter
65369190
Area
2.0559111115481E+14
Altitude
18870459.721604
Surface area
2.0559111115481E+14
Volume
1.2192402698458E+21
Height
10271777.228816