20145221 is an odd 8-digits composite number following 20145220
and preceding 20145222 . In scientific notation, it is written as 2.0145221 × 10^7.
The sum of its digits is 17. It has a total of 2 prime factors and 4 positive divisors.
There are 18960192 positive integers (up to 20145221) that are relatively prime to 20145221.
20145221 has 4 divisors, whose sum is 21330252
The reverse of 20145221 is 12254102
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 17
Digital Root 8
Name
twenty million one hundred forty-five thousand two hundred twenty-one
Scientific notation
2.0145221 × 10^7
Engineering notation
2.0145221 × 10^6
Prime Factorization
17 × 1185013
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20145221
Product of the distinct prime numbers
The prime factorization of 20145221 is 17 × 1185013.
Since it has a total of 2 prime factors.
3 , 10 , 78 , 92 , 243 , 839 , 7660 , 450 , 5536 , 19472 , 640791 , 429086 , 9187897 , 9308845 , 86990552 , 10705980 , 532524028 , 769715947 , 5458292558 , 7303168422
n×2
40290442
n×3
60435663
n×4
80580884
n×5
100726105
n÷2
10072610.5
n÷3
6715073.6666667
n÷3
5036305.25
n÷5
4029044.2
n2
405829929138841
n3
8.1755336109163E+21
n4
1.6469793138484E+29
n5
3.3178762259904E+36
2 √n
4488.3427899393
3 √n
272.09716197951
4 √n
66.995095267783
5 √n
28.895779009084
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
-20145220
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 20145221 can be divided by 4 positive divisors.
The sum of these divisors (counting 20145221) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110110010001000101
3
Ternary
1101220111001022
4
Quaternary
1030312101011
5
Quinary
20124121341
6
Senary
1555440525
8
Octal
114662105
10
Decimal
20145221
12
Duodecimal
68b6145
16
Hexadecimal
1336445
20
Vigesimal
65i311
36
Base36
bzs5h
md5
d94207e96c79e8d8422e48fb2055858a
sha1
8a0f2d04aaf34b14bb35edac6e529efe53dff32b
sha256
52a8ebbebf15ab23f5c7dba0860181ebaf1582fb0e9e26c05ec00929248a3674
sha512
58785f262224b19a2f2403dabd64f8a70235f568d18468ec98b9f4aff1e554d661d8e75183e016eaecd1518d8753fec7544bf33f8555e36b6befd2a8d7442708
ripemd-160
1af4a68dd8d9deae8a62be75534d9465a8a9f34a
Diameter
40290442
Circumference
126576156.59709
Area
1.2749523239894E+15
Volume
3.4245595108308E+22
Surface area
5.0998092959578E+15
Circumference
126576156.59709
Perimeter
80580884
Area
405829929138841
Diagonal
28489644.755203
Surface area
2434979574833046
Volume
8.1755336109163E+21
Space diagonal
34892546.301704
Perimeter
60435663
Area
1.7572951412514E+14
Altitude
17446273.150852
Surface area
1.7572951412514E+14
Volume
9.6349587601624E+20
Height
9496548.2517344