20487992 is an even 8-digits composite number following 20487991
and preceding 20487993 . In scientific notation, it is written as 2.0487992 × 10^7.
The sum of its digits is 41. It has a total of 6 prime factors and 32 positive divisors.
There are 8263680 positive integers (up to 20487992) that are relatively prime to 20487992.
20487992 has 32 divisors, whose sum is 46487520
The reverse of 20487992 is 29978402
Previous prime number is 17
Is Prime? no
Number parity even
Number length 8
Sum of Digits 41
Digital Root 5
Name
twenty million four hundred eighty-seven thousand nine hundred ninety-two
Scientific notation
2.0487992 × 10^7
Engineering notation
2.0487992 × 10^6
Prime Factorization
2 × 2 × 2 × 7 × 17 × 21521
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
5121998
Product of the distinct prime numbers
The prime factorization of 20487992 is 2 × 2 × 2 × 7 × 17 × 21521.
Since it has a total of 6 prime factors.
8 , 2 , 8 , 88 , 239 , 32 , 4170 , 7745 , 14596 , 82666 , 742660 , 756011 , 3770422 , 7611391 , 62568678 , 34864960 , 680018425 , 687212838 , 739204440 , 9954041621
n×2
40975984
n×3
61463976
n×4
81951968
n×5
102439960
n÷2
10243996
n÷3
6829330.6666667
n÷3
5121998
n÷5
4097598.4
n2
419757816192064
n3
8.5999947800805E+21
n4
1.7619662425433E+29
n5
3.6099150281497E+36
2 √n
4526.3663130595
3 √n
273.63173571433
4 √n
67.278275193851
5 √n
28.993448865514
1 , 2 , 4 , 7 , 8 , 14 , 17 , 28 , 34 , 56 , 68 , 119 , 136 , 238 , 476 , 952 , 21521 , 43042 , 86084 , 150647 , 172168 , 301294 , 365857 , 602588 , 731714 , 1205176 , 1463428 , 2560999 , 2926856 , 5121998 , 10243996 , 20487992
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20487991
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20487992 can be divided by 32 positive divisors.
The sum of these divisors (counting 20487992) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1001110001001111100111000
3
Ternary
1102112220020112
4
Quaternary
1032021330320
5
Quinary
20221103432
6
Senary
2011043452
8
Octal
116117470
10
Decimal
20487992
12
Duodecimal
6a40588
16
Hexadecimal
1389f38
20
Vigesimal
680jjc
36
Base36
c74mw
md5
980d49f2ccc0f0811625a7b9b375757f
sha1
57929cd4ec9fa5f6d0687b8fb51f570c62c34a5a
sha256
011583c9a847c3d37a7b2460e311cb6a60e5a9a1e10850cac21d7e2d6280ae8a
sha512
64cd4d1430468502edcd4974fab8a0816dcd038e29baf39df792a195cad741a864517637a3699c5c8754ed45903a8f96a39e566d32e0c046a22a9159022d3a13
ripemd-160
a6a8b55cca843095019e695d18a2ac46d8c5a3f0
Diameter
40975984
Circumference
128729850.30801
Area
1.3187080716359E+15
Volume
3.6023573896015E+22
Surface area
5.2748322865435E+15
Circumference
128729850.30801
Perimeter
81951968
Area
419757816192064
Diagonal
28974396.152191
Surface area
2518546897152384
Volume
8.5999947800805E+21
Space diagonal
35486243.089065
Perimeter
61463976
Area
1.817604661297E+14
Altitude
17743121.544532
Surface area
1.817604661297E+14
Volume
1.0135191045273E+21
Height
9658132.0507305