20003991 is an odd 8-digits composite number following 20003990
and preceding 20003992 . In scientific notation, it is written as 2.0003991 × 10^7.
The sum of its digits is 24. It has a total of 4 prime factors and 16 positive divisors.
There are 11406528 positive integers (up to 20003991) that are relatively prime to 20003991.
20003991 has 16 divisors, whose sum is 30547200
The reverse of 20003991 is 19930002
Previous prime number is 739
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty million three thousand nine hundred ninety-one
Scientific notation
2.0003991 × 10^7
Engineering notation
2.0003991 × 10^6
Prime Factorization
3 × 7 × 739 × 1289
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20003991
Product of the distinct prime numbers
The prime factorization of 20003991 is 3 × 7 × 739 × 1289.
Since it has a total of 4 prime factors.
1 , 7 , 52 , 27 , 705 , 933 , 9471 , 2031 , 66862 , 20530 , 365341 , 947579 , 7561964 , 8741266 , 93106761 , 72014664 , 463734929 , 641123413 , 420911422 , 6683142486
n×2
40007982
n×3
60011973
n×4
80015964
n×5
100019955
n÷2
10001995.5
n÷3
6667997
n÷3
5000997.75
n÷5
4000798.2
n2
400159655928081
n3
8.0047901557484E+21
n4
1.6012775023248E+29
n5
3.2031940745008E+36
2 √n
4472.5821401065
3 √n
271.45981585982
4 √n
66.877366426217
5 √n
28.855149589302
1 , 3 , 7 , 21 , 739 , 1289 , 2217 , 3867 , 5173 , 9023 , 15519 , 27069 , 952571 , 2857713 , 6667997 , 20003991
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
-20003990
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 20003991 can be divided by 16 positive divisors.
The sum of these divisors (counting 20003991) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100010011110010010111
3
Ternary
1101122022022120
4
Quaternary
1030103302113
5
Quinary
20110111431
6
Senary
1552431023
8
Octal
114236227
10
Decimal
20003991
12
Duodecimal
6848473
16
Hexadecimal
1313c97
20
Vigesimal
6509jb
36
Base36
bwr6f
md5
7bce645f1c9a9577a8e5381ab04b6ba6
sha1
812db8edb807023702e307d522eaf076d343050f
sha256
4993feb74b746d194b2ca1cf2589677363a34f5916201dfb822e39cba47445b4
sha512
244fadb790a5814af9e7e3c9d2309ae3f97634aa5429d6be8b0639b5eac3b8480c41419ee0c0f8f1e0eee3b1a0383b3b7ce9284b43d12dbe4313c3adfb65b825
ripemd-160
a351268ae223b5cb9529c623dd41f828d8de37f1
Diameter
40007982
Circumference
125688782.33615
Area
1.2571386353267E+15
Volume
3.353038659577E+22
Surface area
5.0285545413067E+15
Circumference
125688782.33615
Perimeter
80015964
Area
400159655928081
Diagonal
28289915.373789
Surface area
2400957935568486
Volume
8.0047901557484E+21
Space diagonal
34647928.766151
Perimeter
60011973
Area
1.7327421380168E+14
Altitude
17323964.383075
Surface area
1.7327421380168E+14
Volume
9.4337356685084E+20
Height
9429971.7912631