20112987 is an odd 8-digits composite number following 20112986
and preceding 20112988 . In scientific notation, it is written as 2.0112987 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 13393800 positive integers (up to 20112987) that are relatively prime to 20112987.
20112987 has 8 divisors, whose sum is 26847040
The reverse of 20112987 is 78921102
Previous prime number is 1051
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million one hundred twelve thousand nine hundred eighty-seven
Scientific notation
2.0112987 × 10^7
Engineering notation
2.0112987 × 10^6
Prime Factorization
3 × 1051 × 6379
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20112987
Product of the distinct prime numbers
The prime factorization of 20112987 is 3 × 1051 × 6379.
Since it has a total of 3 prime factors.
5 , 6 , 91 , 25 , 828 , 317 , 7743 , 4852 , 1994 , 4049 , 207414 , 203645 , 9724077 , 7060656 , 90822949 , 3389258 , 562026939 , 590457664 , 4867748297 , 5162362796
n×2
40225974
n×3
60338961
n×4
80451948
n×5
100564935
n÷2
10056493.5
n÷3
6704329
n÷3
5028246.75
n÷5
4022597.4
n2
404532246062169
n3
8.1363518061292E+21
n4
1.636463381041E+29
n5
3.2914166708854E+36
2 √n
4484.7504947321
3 √n
271.95195860728
4 √n
66.968279765364
5 √n
28.886525963342
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
-20112986
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 20112987 can be divided by 8 positive divisors.
The sum of these divisors (counting 20112987) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100101110011001011011
3
Ternary
1101211211211110
4
Quaternary
1030232121123
5
Quinary
20122103422
6
Senary
1555031403
8
Octal
114563133
10
Decimal
20112987
12
Duodecimal
689b563
16
Hexadecimal
132e65b
20
Vigesimal
65e297
36
Base36
bz3a3
md5
78a85b82686eed94fe9c17d6db6e95c4
sha1
2510bd03018c040219ce15fb80a7b80652c1df28
sha256
09ecd805924d237a9e0268a3ae08fc454ceb3dc5f196b7e7dfcc52f4f7706600
sha512
1a45750f4e4974fec3a437477bf124e8fdb738657dde8d943e0b4e1620344d9d0d15086f49cdacb44bc0eafe85ac9e761dddf536b57db708b0df4be66c5748e3
ripemd-160
02af0fcebc4dc2540c982211de6110f98856a5b8
Diameter
40225974
Circumference
126373624.40189
Area
1.2708755323691E+15
Volume
3.408147074821E+22
Surface area
5.0835021294764E+15
Circumference
126373624.40189
Perimeter
80451948
Area
404532246062169
Diagonal
28444058.995234
Surface area
2427193476373014
Volume
8.1363518061292E+21
Space diagonal
34836715.375972
Perimeter
60338961
Area
1.7516760086991E+14
Altitude
17418357.687986
Surface area
1.7516760086991E+14
Volume
9.588782560389E+20
Height
9481352.9984113