21787137 is an odd 8-digits composite number following 21787136
and preceding 21787138 . In scientific notation, it is written as 2.1787137 × 10^7.
The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors.
There are 14524596 positive integers (up to 21787137) that are relatively prime to 21787137.
21787137 has 8 divisors, whose sum is 25104800
The reverse of 21787137 is 73178712
Previous prime number is 27
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty-one million seven hundred eighty-seven thousand one hundred thirty-seven
Scientific notation
2.1787137 × 10^7
Engineering notation
2.1787137 × 10^6
Prime Factorization
9 × 27 × 89659
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21787137
Product of the distinct prime numbers
The prime factorization of 21787137 is 9 × 27 × 89659.
Since it has a total of 3 prime factors.
9 , 5 , 19 , 57 , 65 , 67 , 8838 , 836 , 48577 , 66144 , 674210 , 453759 , 6823993 , 8545048 , 46990157 , 35013013 , 272309457 , 8526819 , 25934730 , 4649262557
n×2
43574274
n×3
65361411
n×4
87148548
n×5
108935685
n÷2
10893568.5
n÷3
7262379
n÷3
5446784.25
n÷5
4357427.4
n2
474679338656769
n3
1.0341903782384E+22
n4
2.2532047454763E+29
n5
4.9090880478742E+36
2 √n
4667.6693327613
3 √n
279.2972897687
4 √n
68.320343476605
5 √n
29.352157752615
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
-21787136
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 21787137 can be divided by 8 positive divisors.
The sum of these divisors (counting 21787137) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010011000111001000000001
3
Ternary
1111222220100000
4
Quaternary
1103013020001
5
Quinary
21034142022
6
Senary
2054550213
8
Octal
123071001
10
Decimal
21787137
12
Duodecimal
7368369
16
Hexadecimal
14c7201
20
Vigesimal
6g37gh
36
Base36
cyz29
md5
e6e1d5beb0ec0bcd4650f56da0b74195
sha1
a6f3537603fa5336f48720505073f23e8c07ba21
sha256
9c7d6199e94c22add1ca7e70430acdadf2b8f3366712d6c6dc00d7243e3eb97c
sha512
29eb6b56a1ce2a0d4d82c0029f8acec703f9b1ad08776cad3c3a9b61f09b7031e6fe9c7686c9fdc4f655e6b82a67d466773d0ca836a55d0aea7fee8d7746bba2
ripemd-160
93654cf9d9aee76bd3cafbc4916af533b3ff2c61
Diameter
43574274
Circumference
136892619.08391
Area
1.491249123135E+15
Volume
4.3320065262495E+22
Surface area
5.9649964925399E+15
Circumference
136892619.08391
Perimeter
87148548
Area
474679338656769
Diagonal
30811664.630681
Surface area
2848076031940614
Volume
1.0341903782384E+22
Space diagonal
37736428.235464
Perimeter
65361411
Area
2.0554218296418E+14
Altitude
18868214.117732
Surface area
2.0554218296418E+14
Volume
1.2188050491505E+21
Height
10270554.876894