20487997 is an odd 8-digits composite number following 20487996
and preceding 20487998 . In scientific notation, it is written as 2.0487997 × 10^7.
The sum of its digits is 46. It has a total of 3 prime factors and 8 positive divisors.
There are 20064000 positive integers (up to 20487997) that are relatively prime to 20487997.
20487997 has 8 divisors, whose sum is 20915712
The reverse of 20487997 is 79978402
Previous prime number is 1601
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 46
Digital Root 1
Name
twenty million four hundred eighty-seven thousand nine hundred ninety-seven
Scientific notation
2.0487997 × 10^7
Engineering notation
2.0487997 × 10^6
Prime Factorization
67 × 1601 × 191
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20487997
Product of the distinct prime numbers
The prime factorization of 20487997 is 67 × 1601 × 191.
Since it has a total of 3 prime factors.
3 , 8 , 24 , 25 , 812 , 543 , 5468 , 6639 , 29994 , 64763 , 524689 , 509968 , 8344463 , 9590625 , 60811286 , 75650817 , 484459008 , 329077163 , 9933286857 , 7140247483
n×2
40975994
n×3
61463991
n×4
81951988
n×5
102439985
n÷2
10243998.5
n÷3
6829332.3333333
n÷3
5121999.25
n÷5
4097599.4
n2
419758021072009
n3
8.6000010764493E+21
n4
1.7619679625429E+29
n5
3.6099194330675E+36
2 √n
4526.3668653789
3 √n
273.63175797385
4 √n
67.278279298589
5 √n
28.993450280658
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
-20487996
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 20487997 can be divided by 8 positive divisors.
The sum of these divisors (counting 20487997) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110001001111100111101
3
Ternary
1102112220020201
4
Quaternary
1032021330331
5
Quinary
20221103442
6
Senary
2011043501
8
Octal
116117475
10
Decimal
20487997
12
Duodecimal
6a40591
16
Hexadecimal
1389f3d
20
Vigesimal
680jjh
36
Base36
c74n1
md5
4d11c04a5a850d906a17c8f89d8d98b4
sha1
225a55d9338b824d8f1d3f3c1657c48f68686b30
sha256
0ac260ef68c85d125db5e2b424b7c7f83c9f9712020a2442d3e0958e1420b442
sha512
005111ec8be5169c84a6b26a0e6648a0e79109d6dede2fa16bee4f85653bfb56e3865aabbb2c29b3b1db44aecbb39251eed044565a2699bfb0301772f5a7dfc3
ripemd-160
f36f56a3c8e1f9dea39466933036ad394a809af7
Diameter
40975994
Circumference
128729881.72394
Area
1.3187087152852E+15
Volume
3.6023600270183E+22
Surface area
5.2748348611409E+15
Circumference
128729881.72394
Perimeter
81951988
Area
419758021072009
Diagonal
28974403.223259
Surface area
2518548126432054
Volume
8.6000010764493E+21
Space diagonal
35486251.749319
Perimeter
61463991
Area
1.8176055484532E+14
Altitude
17743125.874659
Surface area
1.8176055484532E+14
Volume
1.0135198465615E+21
Height
9658134.4077531