20087931 is an odd 8-digits composite number following 20087930
and preceding 20087932 . In scientific notation, it is written as 2.0087931 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 12553344 positive integers (up to 20087931) that are relatively prime to 20087931.
20087931 has 8 divisors, whose sum is 20564544
The reverse of 20087931 is 13978002
Previous prime number is 307
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million eighty-seven thousand nine hundred thirty-one
Scientific notation
2.0087931 × 10^7
Engineering notation
2.0087931 × 10^6
Prime Factorization
51 × 307 × 1283
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20087931
Product of the distinct prime numbers
The prime factorization of 20087931 is 51 × 307 × 1283.
Since it has a total of 3 prime factors.
7 , 10 , 81 , 78 , 187 , 912 , 4096 , 4475 , 86814 , 67000 , 756760 , 654974 , 592131 , 9282891 , 57891106 , 49501307 , 784880159 , 173101124 , 7109856268 , 8258208601
n×2
40175862
n×3
60263793
n×4
80351724
n×5
100439655
n÷2
10043965.5
n÷3
6695977
n÷3
5021982.75
n÷5
4017586.2
n2
403524971860761
n3
8.1059817915159E+21
n4
1.6283240291523E+29
n5
3.2709660743253E+36
2 √n
4481.9561577508
3 √n
271.83898251895
4 √n
66.947413376103
5 √n
28.879325225551
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
-20087930
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 20087931 can be divided by 8 positive divisors.
The sum of these divisors (counting 20087931) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100101000010001111011
3
Ternary
1101210120110110
4
Quaternary
1030220101323
5
Quinary
20120303211
6
Senary
1554315403
8
Octal
114502173
10
Decimal
20087931
12
Duodecimal
6888b63
16
Hexadecimal
132847b
20
Vigesimal
65ajgb
36
Base36
byjy3
md5
0d520a124fe5a608bd1719bc6b6b61c0
sha1
29dfb188184b0257d41c32587b1cf4c9b2f1a52f
sha256
80dba14716da2854ee7ee451c566cd3e88352c578e844ca69876d58b761f2750
sha512
0cdb148cb7b5b11ddd487ecfc153d77d83f1beb086650cdbe7156e809c0c8afc41902b8bd70811943e61c706ae267613e453f5f21e2e7374d1e504a5378c1dee
ripemd-160
02f84c4374bb146cd0f1a329c92fabd46de70cb0
Diameter
40175862
Circumference
126216192.91084
Area
1.2677110871378E+15
Volume
3.3954257128479E+22
Surface area
5.0708443485512E+15
Circumference
126216192.91084
Perimeter
80351724
Area
403524971860761
Diagonal
28408624.460215
Surface area
2421149831164566
Volume
8.1059817915159E+21
Space diagonal
34793317.110938
Perimeter
60263793
Area
1.7473143834641E+14
Altitude
17396658.555469
Surface area
1.7473143834641E+14
Volume
9.552991154926E+20
Height
9469541.4867383