20136581 is an odd 8-digits composite number following 20136580
and preceding 20136582 . In scientific notation, it is written as 2.0136581 × 10^7.
The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors.
There are 20104812 positive integers (up to 20136581) that are relatively prime to 20136581.
20136581 has 4 divisors, whose sum is 20168352
The reverse of 20136581 is 18563102
Previous prime number is 647
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty million one hundred thirty-six thousand five hundred eighty-one
Scientific notation
2.0136581 × 10^7
Engineering notation
2.0136581 × 10^6
Prime Factorization
647 × 31123
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20136581
Product of the distinct prime numbers
The prime factorization of 20136581 is 647 × 31123.
Since it has a total of 2 prime factors.
6 , 10 , 15 , 83 , 6 , 80 , 1864 , 801 , 65881 , 50141 , 136525 , 446945 , 9711372 , 6531098 , 23828667 , 24021289 , 980262214 , 647012119 , 1833334107 , 1231020595
n×2
40273162
n×3
60409743
n×4
80546324
n×5
100682905
n÷2
10068290.5
n÷3
6712193.6666667
n÷3
5034145.25
n÷5
4027316.2
n2
405481894369561
n3
8.1650190100061E+21
n4
1.6441556666153E+29
n5
3.3107673757408E+36
2 √n
4487.3801933868
3 √n
272.05825687721
4 √n
66.987910800284
5 √n
28.893299985678
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
-20136580
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 20136581 can be divided by 4 positive divisors.
The sum of these divisors (counting 20136581) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110100001010000101
3
Ternary
1101220001012022
4
Quaternary
1030310022011
5
Quinary
20123332311
6
Senary
1555332525
8
Octal
114641205
10
Decimal
20136581
12
Duodecimal
68b1145
16
Hexadecimal
1334285
20
Vigesimal
65h191
36
Base36
bzlhh
md5
b10ab3e3248270f0b840c37070f5e49c
sha1
8d49d15c1d4f2080ab41650c4ea6b745d6cb3f98
sha256
f438eea277f8c2df2f33c62a1772ac3f4553be28a02e887d16790e7fcf949fd7
sha512
570b06f72bebd76b583feeeaeaecc34b950ff101fcb9592a83caa40f639840c42e60cc4c2db7ffc48d2fe72b0d797907e25d5cf04b56466eec38489546178b37
ripemd-160
df2ad6875b3e7f588ae716d955ca0a87d69ac7ef
Diameter
40273162
Circumference
126521869.87603
Area
1.2738589405151E+15
Volume
3.4201551651008E+22
Surface area
5.0954357620603E+15
Circumference
126521869.87603
Perimeter
80546324
Area
405481894369561
Diagonal
28477425.950024
Surface area
2432891366217366
Volume
8.1650190100061E+21
Space diagonal
34877581.382726
Perimeter
60409743
Area
1.7557881064934E+14
Altitude
17438790.691363
Surface area
1.7557881064934E+14
Volume
9.622567184154E+20
Height
9492475.3166748