20139145 is an odd 8-digits composite number following 20139144
and preceding 20139146 . In scientific notation, it is written as 2.0139145 × 10^7.
The sum of its digits is 25. It has a total of 4 prime factors and 16 positive divisors.
There are 13457664 positive integers (up to 20139145) that are relatively prime to 20139145.
20139145 has 16 divisors, whose sum is 22901760
The reverse of 20139145 is 54193102
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million one hundred thirty-nine thousand one hundred forty-five
Scientific notation
2.0139145 × 10^7
Engineering notation
2.0139145 × 10^6
Prime Factorization
23 × 95 × 13 × 709
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20139145
Product of the distinct prime numbers
The prime factorization of 20139145 is 23 × 95 × 13 × 709.
Since it has a total of 4 prime factors.
6 , 4 , 20 , 38 , 990 , 691 , 7228 , 2560 , 7210 , 54041 , 342397 , 863647 , 8553039 , 1171725 , 34287172 , 84735373 , 591213030 , 744453418 , 123121496 , 6483144429
n×2
40278290
n×3
60417435
n×4
80556580
n×5
100695725
n÷2
10069572.5
n÷3
6713048.3333333
n÷3
5034786.25
n÷5
4027829
n2
405585161331025
n3
8.1681383738939E+21
n4
1.6449932309191E+29
n5
3.3128757201499E+36
2 √n
4487.6658743717
3 √n
272.06980348759
4 √n
66.990043098745
5 √n
28.894035747606
1 , 13 , 23 , 95 , 299 , 709 , 1235 , 2185 , 9217 , 16307 , 28405 , 67355 , 211991 , 875615 , 1549165 , 20139145
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
-20139144
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 20139145 can be divided by 16 positive divisors.
The sum of these divisors (counting 20139145) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100110100110010001001
3
Ternary
1101220011201021
4
Quaternary
1030310302021
5
Quinary
20123423040
6
Senary
1555352441
8
Octal
114646211
10
Decimal
20139145
12
Duodecimal
68b2721
16
Hexadecimal
1334c89
20
Vigesimal
65h7h5
36
Base36
bzngp
md5
91a2ea79e1944004cc108a58d644464c
sha1
d0381484fd16f13e995b649862189258c72ee0d9
sha256
3cf863d7b894ffbb2c47a6e63382c82dab7872148a7b624e7477ffd27919c5d8
sha512
237097745e7eaf0ac10be637bfc683cfc288eb8d2f34cd6d93dca7fb7dcc0fb513d0ce20f37fa3085d5dcc6e6c368fdd0cbe838c882cd9b35842bd1e6c67adfb
ripemd-160
f166a3b2b65a742912eb50c61b8a0d0666de2811
Diameter
40278290
Circumference
126537979.96316
Area
1.2741833632426E+15
Volume
3.4214618011907E+22
Surface area
5.0967334529703E+15
Circumference
126537979.96316
Perimeter
80556580
Area
405585161331025
Diagonal
28481051.993598
Surface area
2433510967986150
Volume
8.1681383738939E+21
Space diagonal
34882022.360997
Perimeter
60417435
Area
1.7562352655534E+14
Altitude
17441011.180498
Surface area
1.7562352655534E+14
Volume
9.6262433897507E+20
Height
9493683.9978661