20145215 is an odd 8-digits composite number following 20145214
and preceding 20145216 . In scientific notation, it is written as 2.0145215 × 10^7.
The sum of its digits is 20. It has a total of 3 prime factors and 8 positive divisors.
There are 16060000 positive integers (up to 20145215) that are relatively prime to 20145215.
20145215 has 8 divisors, whose sum is 24258528
The reverse of 20145215 is 51254102
Previous prime number is 293
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty million one hundred forty-five thousand two hundred fifteen
Scientific notation
2.0145215 × 10^7
Engineering notation
2.0145215 × 10^6
Prime Factorization
5 × 293 × 13751
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20145215
Product of the distinct prime numbers
The prime factorization of 20145215 is 5 × 293 × 13751.
Since it has a total of 3 prime factors.
1 , 4 , 12 , 83 , 628 , 928 , 5128 , 9229 , 78288 , 87711 , 661975 , 886127 , 312099 , 8579720 , 12948767 , 65361840 , 743892376 , 88977462 , 4599635402 , 815767870
n×2
40290430
n×3
60435645
n×4
80580860
n×5
100726075
n÷2
10072607.5
n÷3
6715071.6666667
n÷3
5036303.75
n÷5
4029043
n2
405829687396225
n3
8.1755263059797E+21
n4
1.6469773517212E+29
n5
3.3178712850554E+36
2 √n
4488.3421215411
3 √n
272.09713496593
4 √n
66.995090279371
5 √n
28.895777287835
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
-20145214
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 20145215 can be divided by 8 positive divisors.
The sum of these divisors (counting 20145215) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110110010000111111
3
Ternary
1101220111001002
4
Quaternary
1030312100333
5
Quinary
20124121330
6
Senary
1555440515
8
Octal
114662077
10
Decimal
20145215
12
Duodecimal
68b613b
16
Hexadecimal
133643f
20
Vigesimal
65i30f
36
Base36
bzs5b
md5
1734483f9a85fabac002e52e79c14af0
sha1
59599815a33a9b81e6b184ca5bacca78b3b880b5
sha256
e17f407d0fa6ffebd40b5da0182f5d8141ca15d416ebe9fdf27a7a12c87e2721
sha512
db3222144a3d5af136b49fec38b0e5fb5f1fedb9fc4bab0dead84b32b1caf753e693a2ce15c9b941b8628aa446f52e6e41da26a6b5a41af22de1b876cb878040
ripemd-160
7f8d174ab014086f5a002ac1dd4f39f8ed3dcdeb
Diameter
40290430
Circumference
126576118.89797
Area
1.2749515645326E+15
Volume
3.4245564509461E+22
Surface area
5.0998062581305E+15
Circumference
126576118.89797
Perimeter
80580860
Area
405829687396225
Diagonal
28489636.269922
Surface area
2434978124377350
Volume
8.1755263059797E+21
Space diagonal
34892535.909399
Perimeter
60435645
Area
1.7572940944751E+14
Altitude
17446267.954699
Surface area
1.7572940944751E+14
Volume
9.6349501512121E+20
Height
9496545.4233073