20131895 is an odd 8-digits composite number following 20131894
and preceding 20131896 . In scientific notation, it is written as 2.0131895 × 10^7.
The sum of its digits is 29. It has a total of 4 prime factors and 12 positive divisors.
There are 13804560 positive integers (up to 20131895) that are relatively prime to 20131895.
20131895 has 12 divisors, whose sum is 28102824
The reverse of 20131895 is 59813102
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million one hundred thirty-one thousand eight hundred ninety-five
Scientific notation
2.0131895 × 10^7
Engineering notation
2.0131895 × 10^6
Prime Factorization
5 × 7 × 7 × 82171
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
2875985
Product of the distinct prime numbers
The prime factorization of 20131895 is 5 × 7 × 7 × 82171.
Since it has a total of 4 prime factors.
6 , 9 , 56 , 80 , 303 , 354 , 425 , 8428 , 15840 , 12705 , 486330 , 417308 , 3044270 , 6011722 , 41938744 , 49524186 , 153193894 , 985845977 , 6891840199 , 1587088480
n×2
40263790
n×3
60395685
n×4
80527580
n×5
100659475
n÷2
10065947.5
n÷3
6710631.6666667
n÷3
5032973.75
n÷5
4026379
n2
405293196291025
n3
8.1593200719453E+21
n4
1.642625749598E+29
n5
3.3069169115202E+36
2 √n
4486.8580320755
3 √n
272.03715160788
4 √n
66.984013257459
5 √n
28.891955103858
1 , 5 , 7 , 35 , 49 , 245 , 82171 , 410855 , 575197 , 2875985 , 4026379 , 20131895
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20131894
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20131895 can be divided by 12 positive divisors.
The sum of these divisors (counting 20131895) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001100110011000000110111
3
Ternary
1101212210202202
4
Quaternary
1030303000313
5
Quinary
20123210040
6
Senary
1555255115
8
Octal
114630067
10
Decimal
20131895
12
Duodecimal
68aa49b
16
Hexadecimal
1333037
20
Vigesimal
65g9ef
36
Base36
bzhvb
md5
e0cce3ac8b7aa127533ab7f79da3d306
sha1
bc7fffc1e3695a9f01cc8705943d3a467a61467e
sha256
5a0bb9b26cb7a8a16d086cba82853902e74d6142cd5499e2ba204479c6a0b7e8
sha512
3eaab9be5363845a26f528f1742a0b3f389640cf23ff55cfdd1e1b0c8b89df1976abe0bd1436dbf909fc09fa2c1bf412b830a7a0dff7cd121f872147efa88087
ripemd-160
6a5097a25629c4c46471604a14074695ebc01c6f
Diameter
40263790
Circumference
126492426.86968
Area
1.2732661280178E+15
Volume
3.4177679995081E+22
Surface area
5.0930645120712E+15
Circumference
126492426.86968
Perimeter
80527580
Area
405293196291025
Diagonal
28470798.945271
Surface area
2431759177746150
Volume
8.1593200719453E+21
Space diagonal
34869464.992642
Perimeter
60395685
Area
1.7549710198451E+14
Altitude
17434732.496321
Surface area
1.7549710198451E+14
Volume
9.6158509212401E+20
Height
9490266.3150904