20987112 is an even 8-digits composite number following 20987111
and preceding 20987113 . In scientific notation, it is written as 2.0987112 × 10^7.
The sum of its digits is 30. It has a total of 6 prime factors and 32 positive divisors.
There are 6584064 positive integers (up to 20987112) that are relatively prime to 20987112.
20987112 has 32 divisors, whose sum is 55555200
The reverse of 20987112 is 21178902
Previous prime number is 17
Is Prime? no
Number parity even
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million nine hundred eighty-seven thousand one hundred twelve
Scientific notation
2.0987112 × 10^7
Engineering notation
2.0987112 × 10^6
Prime Factorization
2 × 2 × 2 × 3 × 17 × 51439
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
5246778
Product of the distinct prime numbers
The prime factorization of 20987112 is 2 × 2 × 2 × 3 × 17 × 51439.
Since it has a total of 6 prime factors.
2 , 4 , 39 , 81 , 366 , 973 , 3106 , 4425 , 24581 , 71800 , 603778 , 179848 , 2098002 , 2310763 , 92923807 , 13813993 , 796808613 , 287208110 , 1332695257 , 2660025686
n×2
41974224
n×3
62961336
n×4
83948448
n×5
104935560
n÷2
10493556
n÷3
6995704
n÷3
5246778
n÷5
4197422.4
n2
440458870100544
n3
9.2439596381936E+21
n4
1.9400401625025E+29
n5
4.0715840174938E+36
2 √n
4581.1692830543
3 √n
275.83596638221
4 √n
67.684335581095
5 √n
29.133357356896
1 , 2 , 3 , 4 , 6 , 8 , 12 , 17 , 24 , 34 , 51 , 68 , 102 , 136 , 204 , 408 , 51439 , 102878 , 154317 , 205756 , 308634 , 411512 , 617268 , 874463 , 1234536 , 1748926 , 2623389 , 3497852 , 5246778 , 6995704 , 10493556 , 20987112
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20987111
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20987112 can be divided by 32 positive divisors.
The sum of these divisors (counting 20987112) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1010000000011110011101000
3
Ternary
1110111020220110
4
Quaternary
1100003303220
5
Quinary
20333041422
6
Senary
2025454320
8
Octal
120036350
10
Decimal
20987112
12
Duodecimal
70413a0
16
Hexadecimal
1403ce8
20
Vigesimal
6b37fc
36
Base36
chtrc
md5
041efd19909a7c908bf7e5e71bd1f7b2
sha1
20a0b132960bc36f1b9cf798df8ace4d40849c6c
sha256
b1f58a2713bf02c4e3717df2283f1398d241609c786ac6869b99bc7e99b93be6
sha512
52b35493acffef439db874b0aff0583a259880c79e5e422eb97d8deae0d963e399cc8ab129ba3a31e06cfb9c7ca8563039cd6ce6bd707a902a254a58d04d96fb
ripemd-160
727bc4bbd62c77477c33d58bc3d28f51553636bb
Diameter
41974224
Circumference
131865913.75853
Area
1.3837423505163E+15
Volume
3.8721007585906E+22
Surface area
5.5349694020653E+15
Circumference
131865913.75853
Perimeter
83948448
Area
440458870100544
Diagonal
29680258.425443
Surface area
2642753220603264
Volume
9.2439596381936E+21
Space diagonal
36350744.288138
Perimeter
62961336
Area
1.9072428541463E+14
Altitude
18175372.144069
Surface area
1.9072428541463E+14
Volume
1.0894110908636E+21
Height
9893419.4751477