20742489 is an odd 8-digits composite number following 20742488
and preceding 20742490 . In scientific notation, it is written as 2.0742489 × 10^7.
The sum of its digits is 36. It has a total of 2 prime factors and 4 positive divisors.
There are 13828320 positive integers (up to 20742489) that are relatively prime to 20742489.
20742489 has 4 divisors, whose sum is 23047220
The reverse of 20742489 is 98424702
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty million seven hundred forty-two thousand four hundred eighty-nine
Scientific notation
2.0742489 × 10^7
Engineering notation
2.0742489 × 10^6
Prime Factorization
9 × 2304721
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20742489
Product of the distinct prime numbers
The prime factorization of 20742489 is 9 × 2304721.
Since it has a total of 2 prime factors.
9 , 3 , 61 , 45 , 739 , 530 , 133 , 1783 , 32166 , 68352 , 539072 , 904662 , 507198 , 4957848 , 60356861 , 52798396 , 2662449 , 934059902 , 395370899 , 631725115
n×2
41484978
n×3
62227467
n×4
82969956
n×5
103712445
n÷2
10371244.5
n÷3
6914163
n÷3
5185622.25
n÷5
4148497.8
n2
430250849915121
n3
8.924473521605E+21
n4
1.8511579385268E+29
n5
3.8397623177156E+36
2 √n
4554.3922755951
3 √n
274.76007282709
4 √n
67.486237675507
5 √n
29.065123569771
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20742488
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20742489 can be divided by 4 positive divisors.
The sum of these divisors (counting 20742489) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111001000000101011001
3
Ternary
1110000211100100
4
Quaternary
1033020011121
5
Quinary
20302224424
6
Senary
2020330013
8
Octal
117100531
10
Decimal
20742489
12
Duodecimal
6b43909
16
Hexadecimal
13c8159
20
Vigesimal
69cg49
36
Base36
ccl09
md5
e5f1bad7020c3c79cfa2ee177e6ac153
sha1
9567749dd89b367af725b61810bc958d1c18fbd4
sha256
24afe104e65cf47b11c623cd2499471a7776cb68d30ef3b7282634bae628aba3
sha512
36dd98dc0631c70a6ef63148c057df2469cc04c3746888c82abd4e150266349548a547e1d570f2705e62d4f527380b007bab1565a73ee3bd6b7bbe38d1cc2412
ripemd-160
8d1f1ac8c648680c0fd7900d1aa8e0e820193c6b
Diameter
41484978
Circumference
130328902.11913
Area
1.3516729092941E+15
Volume
3.7382747270175E+22
Surface area
5.4066916371764E+15
Circumference
130328902.11913
Perimeter
82969956
Area
430250849915121
Diagonal
29334309.261175
Surface area
2581505099490726
Volume
8.924473521605E+21
Space diagonal
35927044.823439
Perimeter
62227467
Area
1.8630408301317E+14
Altitude
17963522.411719
Surface area
1.8630408301317E+14
Volume
1.0517592909411E+21
Height
9778103.0870582