21894789 is an odd 8-digits composite number following 21894788
and preceding 21894790 . In scientific notation, it is written as 2.1894789 × 10^7.
The sum of its digits is 48. It has a total of 3 prime factors and 8 positive divisors.
There are 12511296 positive integers (up to 21894789) that are relatively prime to 21894789.
21894789 has 8 divisors, whose sum is 33363520
The reverse of 21894789 is 98749812
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 48
Digital Root 3
Name
twenty-one million eight hundred ninety-four thousand seven hundred eighty-nine
Scientific notation
2.1894789 × 10^7
Engineering notation
2.1894789 × 10^6
Prime Factorization
3 × 7 × 1042609
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21894789
Product of the distinct prime numbers
The prime factorization of 21894789 is 3 × 7 × 1042609.
Since it has a total of 3 prime factors.
5 , 10 , 25 , 62 , 656 , 795 , 5216 , 5961 , 11328 , 96998 , 79828 , 470643 , 4458778 , 1624674 , 84969257 , 34459330 , 501957712 , 573636743 , 1454812734 , 2817085515
n×2
43789578
n×3
65684367
n×4
87579156
n×5
109473945
n÷2
10947394.5
n÷3
7298263
n÷3
5473697.25
n÷5
4378957.8
n2
479381785354521
n3
1.0495963040781E+22
n4
2.2980689612969E+29
n5
5.0315735015044E+36
2 √n
4679.1867883212
3 √n
279.7565443328
4 √n
68.404581632528
5 √n
29.38110686851
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21894788
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21894789 can be divided by 8 positive divisors.
The sum of these divisors (counting 21894789) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010011100001011010000101
3
Ternary
1112012101000010
4
Quaternary
1103201122011
5
Quinary
21101113124
6
Senary
2101140433
8
Octal
123413205
10
Decimal
21894789
12
Duodecimal
73ba719
16
Hexadecimal
14e1685
20
Vigesimal
6gggj9
36
Base36
d1a4l
md5
ce817218c47f675712bf25e7d41ddcfd
sha1
5bc3953e3982ae975e723467b0ec24da44402113
sha256
4a37a8165bb74ce96201655e46ae1f59fb2d9c87777d5d9cc88849117aa2d22a
sha512
b8a07c6c82c7bc9df60542f7f144c45a5bb9682005853b3757ddcf6d475d7a2223b05044f0a27cc11e40ced6422a18a38e38457ad17878f7f3ba98fed7c96b44
ripemd-160
79643a53b8746af8f7d06f80ec1d42302e491b78
Diameter
43789578
Circumference
137569016.5486
Area
1.5060222951345E+15
Volume
4.3965387175021E+22
Surface area
6.0240891805381E+15
Circumference
137569016.5486
Perimeter
87579156
Area
479381785354521
Diagonal
30963907.549097
Surface area
2876290712127126
Volume
1.0495963040781E+22
Space diagonal
37922886.969
Perimeter
65684367
Area
2.0757840211428E+14
Altitude
18961443.4845
Surface area
2.0757840211428E+14
Volume
1.2369611068699E+21
Height
10321302.516366