20157455 is an odd 8-digits composite number following 20157454
and preceding 20157456 . In scientific notation, it is written as 2.0157455 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 16125960 positive integers (up to 20157455) that are relatively prime to 20157455.
20157455 has 4 divisors, whose sum is 24188952
The reverse of 20157455 is 55475102
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million one hundred fifty-seven thousand four hundred fifty-five
Scientific notation
2.0157455 × 10^7
Engineering notation
2.0157455 × 10^6
Prime Factorization
5 × 4031491
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20157455
Product of the distinct prime numbers
The prime factorization of 20157455 is 5 × 4031491.
Since it has a total of 2 prime factors.
4 , 8 , 71 , 78 , 970 , 717 , 6490 , 682 , 35717 , 7220 , 567432 , 321458 , 4174440 , 3480755 , 54653872 , 58766435 , 780039406 , 973641956 , 5708513303 , 2681627890
n×2
40314910
n×3
60472365
n×4
80629820
n×5
100787275
n÷2
10078727.5
n÷3
6719151.6666667
n÷3
5039363.75
n÷5
4031491
n2
406322992077025
n3
8.190437428258E+21
n4
1.6509837389043E+29
n5
3.3279630422694E+36
2 √n
4489.7054469085
3 √n
272.15223150112
4 √n
67.005264322354
5 √n
28.899287782883
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
-20157454
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 20157455 can be divided by 4 positive divisors.
The sum of these divisors (counting 20157455) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100111001010000001111
3
Ternary
1101221002211102
4
Quaternary
1030321100033
5
Quinary
20130014310
6
Senary
2000013315
8
Octal
114712017
10
Decimal
20157455
12
Duodecimal
690123b
16
Hexadecimal
133940f
20
Vigesimal
65jdcf
36
Base36
c01lb
md5
7d57671f82f28099fee4cda0dc2b89bd
sha1
016731021784296fd3fb6cebfe983362f26566ae
sha256
97173c50d60468e231472a234bf998a0c33d58677af26fdfd51f246a26451d48
sha512
55c393017960ee9c53716427b0bf6e573a1753b9eb917095d9cd8caa0b004fda8be2c7e824e2a97f93a7751b1e251c199a860176217b484bc53aa9b97fc8ff07
ripemd-160
a9b74c993731088a2a21943ca45b54f08bd6bf77
Diameter
40314910
Circumference
126653025.08613
Area
1.2765013268938E+15
Volume
3.4308024072403E+22
Surface area
5.1060053075752E+15
Circumference
126653025.08613
Perimeter
80629820
Area
406322992077025
Diagonal
28506946.243925
Surface area
2437937952462150
Volume
8.190437428258E+21
Space diagonal
34913736.211283
Perimeter
60472365
Area
1.759430166402E+14
Altitude
17456868.105642
Surface area
1.759430166402E+14
Volume
9.6525230773422E+20
Height
9502315.4146418