20049987 is an odd 8-digits composite number following 20049986
and preceding 20049988 . In scientific notation, it is written as 2.0049987 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 12580352 positive integers (up to 20049987) that are relatively prime to 20049987.
20049987 has 8 divisors, whose sum is 28305936
The reverse of 20049987 is 78994002
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty million forty-nine thousand nine hundred eighty-seven
Scientific notation
2.0049987 × 10^7
Engineering notation
2.0049987 × 10^6
Prime Factorization
3 × 17 × 393137
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20049987
Product of the distinct prime numbers
The prime factorization of 20049987 is 3 × 17 × 393137.
Since it has a total of 3 prime factors.
5 , 10 , 74 , 95 , 603 , 935 , 3375 , 5183 , 37106 , 94050 , 829493 , 38712 , 2377708 , 4090454 , 20189218 , 4846515 , 569657322 , 655777971 , 5434976229 , 8324958476
n×2
40099974
n×3
60149961
n×4
80199948
n×5
100249935
n÷2
10024993.5
n÷3
6683329
n÷3
5012496.75
n÷5
4009997.4
n2
402001978700169
n3
8.0601344469127E+21
n4
1.6160559087885E+29
n5
3.2401899962483E+36
2 √n
4477.7211838166
3 √n
271.66771617311
4 √n
66.915776793045
5 √n
28.868406968271
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
-20049986
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 20049987 can be divided by 8 positive divisors.
The sum of these divisors (counting 20049987) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100011111000001000011
3
Ternary
1101201122102010
4
Quaternary
1030133001003
5
Quinary
20113044422
6
Senary
1553424003
8
Octal
114370103
10
Decimal
20049987
12
Duodecimal
686b003
16
Hexadecimal
131f043
20
Vigesimal
6564j7
36
Base36
bxqo3
md5
08b4b2ae1842a11800a817e66f943ea1
sha1
afec5227a83017b2678bbed6be85a681ab20b9ac
sha256
58ae6a6f554bdbe27bcbfe8db739dc4f736388a52452d4f5442443dd29402160
sha512
fe8de3b830f14e39b3769d95386beffc10dcccfc1bfefa66a3310c3342cce570b99e0786d0ae5db023040fc2714598358ebf71a2b00b7619a9d4d73fd50590ac
ripemd-160
da02da45e73da7b352f11520ecce560519465bd4
Diameter
40099974
Circumference
125977783.72754
Area
1.262926463013E+15
Volume
3.3762212220489E+22
Surface area
5.051705852052E+15
Circumference
125977783.72754
Perimeter
80199948
Area
402001978700169
Diagonal
28354963.540804
Surface area
2412011872201014
Volume
8.0601344469127E+21
Space diagonal
34727596.175095
Perimeter
60149961
Area
1.7407196296298E+14
Altitude
17363798.087548
Surface area
1.7407196296298E+14
Volume
9.4989595411454E+20
Height
9451654.5136014