20455421 is an odd 8-digits composite number following 20455420
and preceding 20455422 . In scientific notation, it is written as 2.0455421 × 10^7.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 17533212 positive integers (up to 20455421) that are relatively prime to 20455421.
20455421 has 4 divisors, whose sum is 23377632
The reverse of 20455421 is 12455402
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million four hundred fifty-five thousand four hundred twenty-one
Scientific notation
2.0455421 × 10^7
Engineering notation
2.0455421 × 10^6
Prime Factorization
7 × 2922203
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20455421
Product of the distinct prime numbers
The prime factorization of 20455421 is 7 × 2922203.
Since it has a total of 2 prime factors.
10 , 3 , 18 , 66 , 800 , 177 , 1602 , 4201 , 24136 , 35703 , 878552 , 76377 , 78839 , 9370489 , 21915740 , 16247398 , 352617475 , 273876805 , 8547582678 , 8320613474
n×2
40910842
n×3
61366263
n×4
81821684
n×5
102277105
n÷2
10227710.5
n÷3
6818473.6666667
n÷3
5113855.25
n÷5
4091084.2
n2
418424248287241
n3
8.559044155324E+21
n4
1.7507885155474E+29
n5
3.5813116167488E+36
2 √n
4522.7669628226
3 √n
273.48665583321
4 √n
67.251520152504
5 √n
28.984224469978
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
-20455420
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 20455421 can be divided by 4 positive divisors.
The sum of these divisors (counting 20455421) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110000001111111111101
3
Ternary
1102111020120012
4
Quaternary
1032001333331
5
Quinary
20214033141
6
Senary
2010233005
8
Octal
116017775
10
Decimal
20455421
12
Duodecimal
6a25765
16
Hexadecimal
1381ffd
20
Vigesimal
67gib1
36
Base36
c6fi5
md5
14f8f008255284462370fe8af801bb32
sha1
739fe2b6598009303e97bd624c27bdcfb2b3fa95
sha256
8f6374a4f3da4574dd77b06c02a548cacf20c0e88002392bd1133c3240f0f555
sha512
ea95479c74a6030ae66d797a0abfa798206a4452d2e5e3e1d3c596ca53b3d6c61b5bb55a38705beefdb75b0185f66151899d7d15301ebff5eb0c66cf79d273a6
ripemd-160
1d8a8a321b66cf3abf1854194c36f6b37204699d
Diameter
40910842
Circumference
128525200.67937
Area
1.314518544503E+15
Volume
3.5852040320156E+22
Surface area
5.2580741780121E+15
Circumference
128525200.67937
Perimeter
81821684
Area
418424248287241
Diagonal
28928333.802251
Surface area
2510545489723446
Volume
8.559044155324E+21
Space diagonal
35429828.462211
Perimeter
61366263
Area
1.8118301428808E+14
Altitude
17714914.231106
Surface area
1.8118301428808E+14
Volume
1.0086930271175E+21
Height
9642777.9340838