20131661 is an odd 8-digits composite number following 20131660
and preceding 20131662 . In scientific notation, it is written as 2.0131661 × 10^7.
The sum of its digits is 20. It has a total of 3 prime factors and 8 positive divisors.
There are 18271120 positive integers (up to 20131661) that are relatively prime to 20131661.
20131661 has 8 divisors, whose sum is 21998304
The reverse of 20131661 is 16613102
Previous prime number is 2213
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty million one hundred thirty-one thousand six hundred sixty-one
Scientific notation
2.0131661 × 10^7
Engineering notation
2.0131661 × 10^6
Prime Factorization
11 × 2213 × 827
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20131661
Product of the distinct prime numbers
The prime factorization of 20131661 is 11 × 2213 × 827.
Since it has a total of 3 prime factors.
4 , 3 , 27 , 10 , 658 , 9 , 6709 , 140 , 91396 , 84332 , 555478 , 213695 , 7042401 , 9598448 , 6133739 , 2811400 , 472483726 , 770720518 , 4825785599 , 9572730179
n×2
40263322
n×3
60394983
n×4
80526644
n×5
100658305
n÷2
10065830.5
n÷3
6710553.6666667
n÷3
5032915.25
n÷5
4026332.2
n2
405283774618921
n3
8.1590355594285E+21
n4
1.6425493796936E+29
n5
3.3067247287752E+36
2 √n
4486.8319558459
3 √n
272.03609760973
4 √n
66.983818612004
5 √n
28.891887939302
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20131660
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20131661 can be divided by 8 positive divisors.
The sum of these divisors (counting 20131661) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110010111101001101
3
Ternary
1101212210110002
4
Quaternary
1030302331031
5
Quinary
20123203121
6
Senary
1555254045
8
Octal
114627515
10
Decimal
20131661
12
Duodecimal
68aa325
16
Hexadecimal
1332f4d
20
Vigesimal
65g931
36
Base36
bzhot
md5
d72bd702f44776f7ac815d99bbad87c2
sha1
219669ef24edffd5723d37bb3e01aa692047c9e2
sha256
35569f89c791cb7fa6ba5706808057d721739302e03085da5e749879d5f6cc99
sha512
a56e3f643e342008098df2d14d4f939e1d9297dabccd31c8517a2454a002ea09eabe62874297227f8774c2f0e67391c13d06672274350969376d6699fb846213
ripemd-160
c8a46609b2de8302dc2bac068c946e8ea23f7a90
Diameter
40263322
Circumference
126490956.60432
Area
1.2732365289619E+15
Volume
3.4176488231838E+22
Surface area
5.0929461158478E+15
Circumference
126490956.60432
Perimeter
80526644
Area
405283774618921
Diagonal
28470468.019298
Surface area
2431702647713526
Volume
8.1590355594285E+21
Space diagonal
34869059.692753
Perimeter
60394983
Area
1.7549302228082E+14
Altitude
17434529.846376
Surface area
1.7549302228082E+14
Volume
9.6155156200235E+20
Height
9490156.0064325