21551689 is an odd 8-digits composite number following 21551688
and preceding 21551690 . In scientific notation, it is written as 2.1551689 × 10^7.
The sum of its digits is 37. It has a total of 3 prime factors and 6 positive divisors.
There are 21225600 positive integers (up to 21551689) that are relatively prime to 21551689.
21551689 has 6 divisors, whose sum is 21882714
The reverse of 21551689 is 98615512
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty-one million five hundred fifty-one thousand six hundred eighty-nine
Scientific notation
2.1551689 × 10^7
Engineering notation
2.1551689 × 10^6
Prime Factorization
67 × 67 × 4801
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
321667
Product of the distinct prime numbers
The prime factorization of 21551689 is 67 × 67 × 4801.
Since it has a total of 3 prime factors.
1 , 5 , 76 , 38 , 61 , 794 , 1935 , 6902 , 69591 , 25521 , 898451 , 246990 , 8262275 , 316962 , 93463000 , 85687304 , 235110460 , 169798118 , 5674503151 , 7080159965
n×2
43103378
n×3
64655067
n×4
86206756
n×5
107758445
n÷2
10775844.5
n÷3
7183896.3333333
n÷3
5387922.25
n÷5
4310337.8
n2
464475298752721
n3
1.0010227186901E+22
n4
2.1573730315143E+29
n5
4.6495032632183E+36
2 √n
4642.3796699538
3 √n
278.28754558533
4 √n
68.135010603608
5 √n
29.288441480232
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21551688
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21551689 can be divided by 6 positive divisors.
The sum of these divisors (counting 21551689) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1010010001101101001001001
3
Ternary
1111112221100201
4
Quaternary
1102031221021
5
Quinary
21004123224
6
Senary
2045532201
8
Octal
122155111
10
Decimal
21551689
12
Duodecimal
7274061
16
Hexadecimal
148da49
20
Vigesimal
6edj49
36
Base36
ctxe1
md5
4653389e3896d4a21c0eabf7f0330f15
sha1
91f95412059b5b41d80db1a938d7b98767fe337e
sha256
8c457345e79fb6095ba3df184352f6dc31f746f30cc4c2391c7bacd4f8d48e45
sha512
6fde958a2943511c3dca66057657ad2de05724cc1ce1f9faa3b486e0490ed7670c303e95cb1b9572d187aaa0c08e58070e0bb41ee3a474e52fab2bd32a44e4e2
ripemd-160
98b49af59eb5a23863da3ef78876ce27980ecd90
Diameter
43103378
Circumference
135413255.6697
Area
1.4591921863355E+15
Volume
4.1930741588176E+22
Surface area
5.8367687453419E+15
Circumference
135413255.6697
Perimeter
86206756
Area
464475298752721
Diagonal
30478690.875847
Surface area
2786851792516326
Volume
1.0010227186901E+22
Space diagonal
37328620.336923
Perimeter
64655067
Area
2.0112370407511E+14
Altitude
18664310.168462
Surface area
2.0112370407511E+14
Volume
1.1797165875126E+21
Height
10159563.625282