20126987 is an odd 8-digits composite number following 20126986
and preceding 20126988 . In scientific notation, it is written as 2.0126987 × 10^7.
The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors.
There are 20061960 positive integers (up to 20126987) that are relatively prime to 20126987.
20126987 has 4 divisors, whose sum is 20192016
The reverse of 20126987 is 78962102
Previous prime number is 311
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty million one hundred twenty-six thousand nine hundred eighty-seven
Scientific notation
2.0126987 × 10^7
Engineering notation
2.0126987 × 10^6
Prime Factorization
311 × 64717
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20126987
Product of the distinct prime numbers
The prime factorization of 20126987 is 311 × 64717.
Since it has a total of 2 prime factors.
2 , 8 , 35 , 68 , 355 , 749 , 1192 , 2498 , 44988 , 34047 , 169897 , 68373 , 7041725 , 8947809 , 68714417 , 93703026 , 168584462 , 599060150 , 5642813685 , 4718253286
n×2
40253974
n×3
60380961
n×4
80507948
n×5
100634935
n÷2
10063493.5
n÷3
6708995.6666667
n÷3
5031746.75
n÷5
4025397.4
n2
405095605698169
n3
8.1533539896442E+21
n4
1.6410244975597E+29
n5
3.3028878729065E+36
2 √n
4486.3110681271
3 √n
272.01504296129
4 √n
66.979930338327
5 √n
28.890546239509
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20126986
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20126987 can be divided by 4 positive divisors.
The sum of these divisors (counting 20126987) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110001110100001011
3
Ternary
1101212120000222
4
Quaternary
1030301310023
5
Quinary
20123030422
6
Senary
1555220255
8
Octal
114616413
10
Decimal
20126987
12
Duodecimal
68a768b
16
Hexadecimal
1331d0b
20
Vigesimal
65fh97
36
Base36
bze2z
md5
4c114d08a437d9263cc9399af850800b
sha1
76aeabafcb11de668b51af36a0fe4401a9d6782d
sha256
60b72c93ffb319d666dffabaf52e02583c2500715091c0d6c34986222c4d1c55
sha512
af35738683dfbfe27c25f6973c7869a141185ea4c6a03b9889991752555a80303cb1d9ec2193d2ce7ba05c25b84dcfba4d0919905e2bc1cb2681468630f08b4d
ripemd-160
8e6d7c9546e7a2c66173913d84c1f12948380d38
Diameter
40253974
Circumference
126461588.99619
Area
1.2726453788629E+15
Volume
3.4152689327978E+22
Surface area
5.0905815154515E+15
Circumference
126461588.99619
Perimeter
80507948
Area
405095605698169
Diagonal
28463857.985107
Surface area
2430573634189014
Volume
8.1533539896442E+21
Space diagonal
34860964.087278
Perimeter
60380961
Area
1.7541154274803E+14
Altitude
17430482.043639
Surface area
1.7541154274803E+14
Volume
9.6088198258196E+20
Height
9487952.6617023