20748021 is an odd 8-digits composite number following 20748020
and preceding 20748022 . In scientific notation, it is written as 2.0748021 × 10^7.
The sum of its digits is 24. It has a total of 4 prime factors and 16 positive divisors.
There are 11007360 positive integers (up to 20748021) that are relatively prime to 20748021.
20748021 has 16 divisors, whose sum is 28758528
The reverse of 20748021 is 12084702
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty million seven hundred forty-eight thousand twenty-one
Scientific notation
2.0748021 × 10^7
Engineering notation
2.0748021 × 10^6
Prime Factorization
3 × 1421 × 31 × 157
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20748021
Product of the distinct prime numbers
The prime factorization of 20748021 is 3 × 1421 × 31 × 157.
Since it has a total of 4 prime factors.
5 , 4 , 61 , 94 , 347 , 630 , 4918 , 3119 , 94340 , 41561 , 563111 , 922237 , 553257 , 9303407 , 76087906 , 49613104 , 241851459 , 879099073 , 1211134628 , 5850543452
n×2
41496042
n×3
62244063
n×4
82992084
n×5
103740105
n÷2
10374010.5
n÷3
6916007
n÷3
5187005.25
n÷5
4149604.2
n2
430480375416441
n3
8.9316158692282E+21
n4
1.8531335361868E+29
n5
3.8448853524608E+36
2 √n
4554.999560922
3 √n
274.78449673009
4 √n
67.490736852712
5 √n
29.066673731987
1 , 3 , 31 , 93 , 157 , 471 , 1421 , 4263 , 4867 , 14601 , 44051 , 132153 , 223097 , 669291 , 6916007 , 20748021
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20748020
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20748021 can be divided by 16 positive divisors.
The sum of these divisors (counting 20748021) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111001001011011110101
3
Ternary
1110001002221020
4
Quaternary
1033021123311
5
Quinary
20302414041
6
Senary
2020411353
8
Octal
117113365
10
Decimal
20748021
12
Duodecimal
6b46b59
16
Hexadecimal
13c96f5
20
Vigesimal
69da11
36
Base36
ccp9x
md5
d1f314d8b89908a2c1322607801d0ae7
sha1
1ca7cf07d14901eea382a0446cd327e70d1e8323
sha256
09530dbda8f7340b41999f59850a47aaf75f8ce393f3a999e3bab6145eb77780
sha512
bd686ec3dccb4928138865e570b7f2d3cc920c4e2986b9ae2be1b8ba0f756253f6cde100aa8e4c0d140691930568ecb88f52493ed681a3182fdb303ec1765f55
ripemd-160
f88b953739cf3e157e7cfc10c214270a8ef19fb7
Diameter
41496042
Circumference
130363660.70025
Area
1.3523939849229E+15
Volume
3.7412665065938E+22
Surface area
5.4095759396915E+15
Circumference
130363660.70025
Perimeter
82992084
Area
430480375416441
Diagonal
29342132.690602
Surface area
2582882252498646
Volume
8.9316158692282E+21
Space diagonal
35936626.528506
Perimeter
62244063
Area
1.8640347047065E+14
Altitude
17968313.264253
Surface area
1.8640347047065E+14
Volume
1.0526010246808E+21
Height
9780710.8968673