20856812 is an even 8-digits composite number following 20856811
and preceding 20856813 . In scientific notation, it is written as 2.0856812 × 10^7.
The sum of its digits is 32. It has a total of 4 prime factors and 12 positive divisors.
There are 10401600 positive integers (up to 20856812) that are relatively prime to 20856812.
20856812 has 12 divisors, whose sum is 36593256
The reverse of 20856812 is 21865802
Previous prime number is 401
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million eight hundred fifty-six thousand eight hundred twelve
Scientific notation
2.0856812 × 10^7
Engineering notation
2.0856812 × 10^6
Prime Factorization
2 × 2 × 401 × 13003
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10428406
Product of the distinct prime numbers
The prime factorization of 20856812 is 2 × 2 × 401 × 13003.
Since it has a total of 4 prime factors.
1 , 5 , 61 , 53 , 154 , 175 , 6068 , 4418 , 65439 , 34780 , 204869 , 92066 , 1981199 , 665625 , 12045457 , 25819456 , 359239820 , 484611168 , 8312604258 , 476031246
n×2
41713624
n×3
62570436
n×4
83427248
n×5
104284060
n÷2
10428406
n÷3
6952270.6666667
n÷3
5214203
n÷5
4171362.4
n2
435006606803344
n3
9.0728510168553E+21
n4
1.8923074796256E+29
n5
3.9467501348745E+36
2 √n
4566.9258807211
3 √n
275.26393173398
4 √n
67.579034328119
5 √n
29.09709187148
1 , 2 , 4 , 401 , 802 , 1604 , 13003 , 26006 , 52012 , 5214203 , 10428406 , 20856812
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
-20856811
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 20856812 can be divided by 12 positive divisors.
The sum of these divisors (counting 20856812) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001111100011111111101100
3
Ternary
1110020122011112
4
Quaternary
1033203333230
5
Quinary
20314404222
6
Senary
2023011152
8
Octal
117437754
10
Decimal
20856812
12
Duodecimal
6b99ab8
16
Hexadecimal
13e3fec
20
Vigesimal
6a720c
36
Base36
cf17w
md5
b0d4a50d4eb7f5fd16a2debeb0eabed2
sha1
03560a6c2ef09cc484c22df8137accf3f3aa9a8a
sha256
952688cd0266da9767418c375bad3e95ef0afb3e4ed7ac3ada9d20a2113083fe
sha512
c7f13c8512555aebabfb8c9d91d0fccd8893c9600151d0bc42d9c81bf90573feb838eb53e24c29ab4789ca4b4feb17a3e86925a02f9d1343bad960c1b7c4e56b
ripemd-160
4a1e186f164478a5c735fd90184084d18fc9b66e
Diameter
41713624
Circumference
131047214.71301
Area
1.3666135601964E+15
Volume
3.800426946889E+22
Surface area
5.4664542407856E+15
Circumference
131047214.71301
Perimeter
83427248
Area
435006606803344
Diagonal
29495986.398266
Surface area
2610039640820064
Volume
9.0728510168553E+21
Space diagonal
36125058.067912
Perimeter
62570436
Area
1.8836338615288E+14
Altitude
18062529.033956
Surface area
1.8836338615288E+14
Volume
1.0692457464523E+21
Height
9831995.4660886