20681946 is an even 8-digits composite number following 20681945
and preceding 20681947 . In scientific notation, it is written as 2.0681946 × 10^7.
The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors.
There are 6893964 positive integers (up to 20681946) that are relatively prime to 20681946.
20681946 has 8 divisors, whose sum is 32172000
The reverse of 20681946 is 64918602
Previous prime number is 27
Is Prime? no
Number parity even
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty million six hundred eighty-one thousand nine hundred forty-six
Scientific notation
2.0681946 × 10^7
Engineering notation
2.0681946 × 10^6
Prime Factorization
2 × 27 × 382999
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20681946
Product of the distinct prime numbers
The prime factorization of 20681946 is 2 × 27 × 382999.
Since it has a total of 3 prime factors.
10 , 8 , 70 , 95 , 363 , 103 , 2896 , 8172 , 47314 , 34216 , 242737 , 183256 , 7251689 , 9432303 , 64861007 , 25134882 , 105407717 , 42633568 , 5028855407 , 4160362347
n×2
41363892
n×3
62045838
n×4
82727784
n×5
103409730
n÷2
10340973
n÷3
6893982
n÷3
5170486.5
n÷5
4136389.2
n2
427742890346916
n3
8.8465553600388E+21
n4
1.8296398024233E+29
n5
3.784051159317E+36
2 √n
4547.7407577829
3 √n
274.4924898659
4 √n
67.43693911932
5 √n
29.048136718785
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
-20681945
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 20681946 can be divided by 8 positive divisors.
The sum of these divisors (counting 20681946) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110111001010011011010
3
Ternary
1102220202022000
4
Quaternary
1032321103122
5
Quinary
20243310241
6
Senary
2015141430
8
Octal
116712332
10
Decimal
20681946
12
Duodecimal
6b14876
16
Hexadecimal
13b94da
20
Vigesimal
6954h6
36
Base36
cbaai
md5
a736ab53cfd5c36b8a0c7b510ac77b79
sha1
440a3d2ea3d7601d19725aee5282d538a71c483b
sha256
9d39c43ac7c1b104bda8be8885b6622686a7e67ff5cfc1a62668dabbcfb8f944
sha512
a2aca25a0c46b0a736c96f17879e91fbe6c17649f0d869e3e1883962b6033be814ae86cf35a35f9425e4473b61aaf232f50e31f6b40ab4bdb5b612a8dbb50126
ripemd-160
a2c85031b77d11a73ec0f230a63151636c592e52
Diameter
41363892
Circumference
129948499.23108
Area
1.3437939219391E+15
Volume
3.7056364438231E+22
Surface area
5.3751756877565E+15
Circumference
129948499.23108
Perimeter
82727784
Area
427742890346916
Diagonal
29248688.529468
Surface area
2566457342081496
Volume
8.8465553600388E+21
Space diagonal
35822181.271396
Perimeter
62045838
Area
1.8521810466431E+14
Altitude
17911090.635698
Surface area
1.8521810466431E+14
Volume
1.0425765475376E+21
Height
9749562.843156