21004789 is an odd 8-digits composite number following 21004788
and preceding 21004790 . In scientific notation, it is written as 2.1004789 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 18864576 positive integers (up to 21004789) that are relatively prime to 21004789.
21004789 has 8 divisors, whose sum is 23232440
The reverse of 21004789 is 98740012
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million four thousand seven hundred eighty-nine
Scientific notation
2.1004789 × 10^7
Engineering notation
2.1004789 × 10^6
Prime Factorization
37 × 13 × 43669
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21004789
Product of the distinct prime numbers
The prime factorization of 21004789 is 37 × 13 × 43669.
Since it has a total of 3 prime factors.
3 , 4 , 37 , 89 , 218 , 439 , 7405 , 7517 , 10804 , 56593 , 889367 , 615662 , 5850870 , 2096122 , 52781218 , 97410743 , 748390467 , 393270105 , 7807127339 , 1536236281
n×2
42009578
n×3
63014367
n×4
84019156
n×5
105023945
n÷2
10502394.5
n÷3
7001596.3333333
n÷3
5251197.25
n÷5
4200957.8
n2
441201160934521
n3
9.2673372919847E+21
n4
1.9465846440997E+29
n5
4.0887599719954E+36
2 √n
4583.0981879074
3 √n
275.91338824708
4 √n
67.698583352293
5 √n
29.138263386267
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
-21004788
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 21004789 can be divided by 8 positive divisors.
The sum of these divisors (counting 21004789) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000001000000111110101
3
Ternary
1110112011011011
4
Quaternary
1100020013311
5
Quinary
20334123124
6
Senary
2030112221
8
Octal
120100765
10
Decimal
21004789
12
Duodecimal
704b671
16
Hexadecimal
14081f5
20
Vigesimal
6b5bj9
36
Base36
ci7ed
md5
bbc4dd4f66fa9b818b80074f933d8a81
sha1
b3cd22d10ffed9dc3d0c8335bcb63dc833a16a0f
sha256
b1b87a6feb9f078f7246898557ab2e6b36c5a9301d2632fb9a39eedbe1c785ae
sha512
af10fa36922ef7c0b12d2b11cd1bf1e62dd98698c139e7b4f9a6020ed84a344d3faafe22728fbb9d52657126ddd045cb930f1d2abedbc1714a8957e3b263e331
ripemd-160
12bbe023e80d2be5aba05c4b6f649bf4457cfd49
Diameter
42009578
Circumference
131976981.62521
Area
1.3860743259472E+15
Volume
3.8818931673117E+22
Surface area
5.5442973037887E+15
Circumference
131976981.62521
Perimeter
84019156
Area
441201160934521
Diagonal
29705257.478585
Surface area
2647206965607126
Volume
9.2673372919847E+21
Space diagonal
36381361.750264
Perimeter
63014367
Area
1.9104570677424E+14
Altitude
18190680.875132
Surface area
1.9104570677424E+14
Volume
1.0921661737842E+21
Height
9901752.4928617