20187387 is an odd 8-digits composite number following 20187386
and preceding 20187388 . In scientific notation, it is written as 2.0187387 × 10^7.
The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors.
There are 12072240 positive integers (up to 20187387) that are relatively prime to 20187387.
20187387 has 16 divisors, whose sum is 21857920
The reverse of 20187387 is 78378102
Previous prime number is 139
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty million one hundred eighty-seven thousand three hundred eighty-seven
Scientific notation
2.0187387 × 10^7
Engineering notation
2.0187387 × 10^6
Prime Factorization
27 × 33 × 139 × 163
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20187387
Product of the distinct prime numbers
The prime factorization of 20187387 is 27 × 33 × 139 × 163.
Since it has a total of 4 prime factors.
4 , 2 , 10 , 68 , 261 , 39 , 9282 , 789 , 72387 , 39850 , 448184 , 971916 , 6268415 , 4502100 , 4775383 , 56894561 , 197993769 , 265760016 , 4586895590 , 3534897728
n×2
40374774
n×3
60562161
n×4
80749548
n×5
100936935
n÷2
10093693.5
n÷3
6729129
n÷3
5046846.75
n÷5
4037477.4
n2
407530593887769
n3
8.2269778131522E+21
n4
1.6608118495452E+29
n5
3.3527451540954E+36
2 √n
4493.0376139089
3 √n
272.28687204084
4 √n
67.030124674723
5 √n
28.907865256105
1 , 27 , 33 , 139 , 163 , 891 , 3753 , 4401 , 4587 , 5379 , 22657 , 123849 , 145233 , 611739 , 747681 , 20187387
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20187386
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20187387 can be divided by 16 positive divisors.
The sum of these divisors (counting 20187387) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101000000100011111011
3
Ternary
1101222121220000
4
Quaternary
1031000203323
5
Quinary
20131444022
6
Senary
2000404043
8
Octal
115004373
10
Decimal
20187387
12
Duodecimal
6916623
16
Hexadecimal
13408fb
20
Vigesimal
663897
36
Base36
c0oor
md5
0d1ffead603e441b30993566d9d45726
sha1
018f3052566537abe92e3a0ba7aed135b98a5de5
sha256
ebc63f8089ed0e1c98cecd88a4517328b148af079fceeec89ea343e265e53648
sha512
c9a95c3e8c53b8beba6094b18a7b33fa77291336fc704d0d0d25942602885a69a58a4bb92c8a13efc01d153a84ea1b2bba1505815c59df914baf49eadbc2f4c7
ripemd-160
bf3ceeeabadce0a267d4f24ecd5640abc945d534
Diameter
40374774
Circumference
126841093.38875
Area
1.2802951198709E+15
Volume
3.4461084078727E+22
Surface area
5.1211804794836E+15
Circumference
126841093.38875
Perimeter
80749548
Area
407530593887769
Diagonal
28549276.484274
Surface area
2445183563326614
Volume
8.2269778131522E+21
Space diagonal
34965579.956055
Perimeter
60562161
Area
1.7646592356308E+14
Altitude
17482789.978028
Surface area
1.7646592356308E+14
Volume
9.6955863339187E+20
Height
9516425.4947581