20856872 is an even 8-digits composite number following 20856871
and preceding 20856873 . In scientific notation, it is written as 2.0856872 × 10^7.
The sum of its digits is 38. It has a total of 4 prime factors and 8 positive divisors.
There are 10428432 positive integers (up to 20856872) that are relatively prime to 20856872.
20856872 has 8 divisors, whose sum is 39106650
The reverse of 20856872 is 27865802
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million eight hundred fifty-six thousand eight hundred seventy-two
Scientific notation
2.0856872 × 10^7
Engineering notation
2.0856872 × 10^6
Prime Factorization
2 × 2 × 2 × 2607109
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
5214218
Product of the distinct prime numbers
The prime factorization of 20856872 is 2 × 2 × 2 × 2607109.
Since it has a total of 4 prime factors.
6 , 9 , 72 , 88 , 736 , 236 , 3349 , 2959 , 44069 , 39867 , 565286 , 157209 , 8635572 , 1939940 , 68426034 , 9087266 , 354437487 , 48320450 , 4574015427 , 6409116715
n×2
41713744
n×3
62570616
n×4
83427488
n×5
104284360
n÷2
10428436
n÷3
6952290.6666667
n÷3
5214218
n÷5
4171374.4
n2
435009109624384
n3
9.0729293182697E+21
n4
1.892329254562E+29
n5
3.9468069044255E+36
2 √n
4566.9324496866
3 √n
275.26419568963
4 √n
67.579082930198
5 √n
29.097108612518
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
-20856871
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 20856872 can be divided by 8 positive divisors.
The sum of these divisors (counting 20856872) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111100100000000101000
3
Ternary
1110020122020202
4
Quaternary
1033210000220
5
Quinary
20314404442
6
Senary
2023011332
8
Octal
117440050
10
Decimal
20856872
12
Duodecimal
6b99b48
16
Hexadecimal
13e4028
20
Vigesimal
6a723c
36
Base36
cf19k
md5
07c3db838eb14741765d1b529c84b1b7
sha1
4a8e6fc573bb02e013d3f84cd7a41cadae403562
sha256
d8f9d031d367a8feaaa63a337d936f94efc1e563f499a00be0f1f27fb9836a9e
sha512
92637d3094d75bb4a4e0e21d37b7280662f8cc52070fcb557f578c065e0311332b95355e8677597de43ac6290464347751477108e0e12a59a6db24b7b125de46
ripemd-160
347744629888e92334d1bcf42de9d080f343fd9c
Diameter
41713744
Circumference
131047591.70413
Area
1.3666214230406E+15
Volume
3.8004597457088E+22
Surface area
5.4664856921624E+15
Circumference
131047591.70413
Perimeter
83427488
Area
435009109624384
Diagonal
29496071.25108
Surface area
2610054657746304
Volume
9.0729293182697E+21
Space diagonal
36125161.990961
Perimeter
62570616
Area
1.8836446990618E+14
Altitude
18062580.99548
Surface area
1.8836446990618E+14
Volume
1.0692549743625E+21
Height
9832023.7503599