20731685 is an odd 8-digits composite number following 20731684
and preceding 20731686 . In scientific notation, it is written as 2.0731685 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 15309504 positive integers (up to 20731685) that are relatively prime to 20731685.
20731685 has 8 divisors, whose sum is 26791800
The reverse of 20731685 is 58613702
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million seven hundred thirty-one thousand six hundred eighty-five
Scientific notation
2.0731685 × 10^7
Engineering notation
2.0731685 × 10^6
Prime Factorization
13 × 5 × 318949
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20731685
Product of the distinct prime numbers
The prime factorization of 20731685 is 13 × 5 × 318949.
Since it has a total of 3 prime factors.
1 , 6 , 68 , 28 , 28 , 175 , 4136 , 7331 , 20789 , 16625 , 231717 , 338192 , 3753396 , 2849196 , 57919684 , 39396439 , 501952473 , 541662683 , 7608728338 , 1568060970
n×2
41463370
n×3
62195055
n×4
82926740
n×5
103658425
n÷2
10365842.5
n÷3
6910561.6666667
n÷3
5182921.25
n÷5
4146337
n2
429802762939225
n3
8.9105354933857E+21
n4
1.8473041503019E+29
n5
3.8297727743252E+36
2 √n
4553.2060133493
3 √n
274.71236040178
4 √n
67.477448183443
5 √n
29.062095147869
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
-20731684
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 20731685 can be divided by 8 positive divisors.
The sum of these divisors (counting 20731685) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111000101011100100101
3
Ternary
1110000021112012
4
Quaternary
1033011130211
5
Quinary
20301403220
6
Senary
2020204005
8
Octal
117053445
10
Decimal
20731685
12
Duodecimal
6b39605
16
Hexadecimal
13c5725
20
Vigesimal
69b945
36
Base36
ccco5
md5
8f13873fbb99b59d2325a38aa5216799
sha1
a5f17686ee1fce4eeea49f4c974643a00658e890
sha256
5a9ba9c42bc0be57119b4e4b07b4000e8bb65041539d578a14e9d09cd9026b07
sha512
7df2c375a745de3814410d633c4d38b1054337459141c81c31aaab5fef4892b0c6093dc2d2e34aae4ef4dfa3c01a14ec81c935004ac2995809d01ec6b33e84e3
ripemd-160
b715bfb5529ca2b96420f0402c99ab29ab78737d
Diameter
41463370
Circumference
130261018.58508
Area
1.3502652025425E+15
Volume
3.7324363794095E+22
Surface area
5.4010608101699E+15
Circumference
130261018.58508
Perimeter
82926740
Area
429802762939225
Diagonal
29319030.097847
Surface area
2578816577635350
Volume
8.9105354933857E+21
Space diagonal
35908331.746514
Perimeter
62195055
Area
1.8611005566105E+14
Altitude
17954165.873257
Surface area
1.8611005566105E+14
Volume
1.0501166785627E+21
Height
9773010.0326156