20145237 is an odd 8-digits composite number following 20145236
and preceding 20145238 . In scientific notation, it is written as 2.0145237 × 10^7.
The sum of its digits is 24. It has a total of 4 prime factors and 16 positive divisors.
There are 11364912 positive integers (up to 20145237) that are relatively prime to 20145237.
20145237 has 16 divisors, whose sum is 31088640
The reverse of 20145237 is 73254102
Previous prime number is 79
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty million one hundred forty-five thousand two hundred thirty-seven
Scientific notation
2.0145237 × 10^7
Engineering notation
2.0145237 × 10^6
Prime Factorization
3 × 7 × 79 × 12143
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20145237
Product of the distinct prime numbers
The prime factorization of 20145237 is 3 × 7 × 79 × 12143.
Since it has a total of 4 prime factors.
6 , 8 , 23 , 63 , 825 , 682 , 5052 , 7380 , 21458 , 37716 , 34466 , 385299 , 1426655 , 9281977 , 4855088 , 17165173 , 574113904 , 229084239 , 8312778080 , 1604650020
n×2
40290474
n×3
60435711
n×4
80580948
n×5
100726185
n÷2
10072618.5
n÷3
6715079
n÷3
5036309.25
n÷5
4029047.4
n2
405830573786169
n3
8.1755530907684E+21
n4
1.6469845461961E+29
n5
3.3178894018458E+36
2 √n
4488.344572334
3 √n
272.09723401567
4 √n
66.995108570208
5 √n
28.895783599079
1 , 3 , 7 , 21 , 79 , 237 , 553 , 1659 , 12143 , 36429 , 85001 , 255003 , 959297 , 2877891 , 6715079 , 20145237
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
-20145236
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 20145237 can be divided by 16 positive divisors.
The sum of these divisors (counting 20145237) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100110110010001010101
3
Ternary
1101220111001220
4
Quaternary
1030312101111
5
Quinary
20124121422
6
Senary
1555440553
8
Octal
114662125
10
Decimal
20145237
12
Duodecimal
68b6159
16
Hexadecimal
1336455
20
Vigesimal
65i31h
36
Base36
bzs5x
md5
aaa1b0caa18fba9881e9a11d0409d3af
sha1
32477d17b8dd956375df890235444d5bfb1b3379
sha256
3e010b9b83de39a560ba85a0c04458fea36fcd349261b096a3a0a45648b257df
sha512
2c0b86449eca058e9c83a4d089e503e82cb5210bf34667cd36ee1e684853278e60548a9528295386e41a2a58972373e5a2c0cf7265112ccc46cf0b88b9360e32
ripemd-160
08b138fc2a7f0d9b37159ca469e15fb9aa125a37
Diameter
40290474
Circumference
126576257.12805
Area
1.2749543492088E+15
Volume
3.4245676705322E+22
Surface area
5.099817396835E+15
Circumference
126576257.12805
Perimeter
80580948
Area
405830573786169
Diagonal
28489667.38262
Surface area
2434983442717014
Volume
8.1755530907684E+21
Space diagonal
34892574.014516
Perimeter
60435711
Area
1.7572979326562E+14
Altitude
17446287.007258
Surface area
1.7572979326562E+14
Volume
9.6349817173882E+20
Height
9496555.7942068