20406487 is an odd 8-digits composite number following 20406486
and preceding 20406488 . In scientific notation, it is written as 2.0406487 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 20245680 positive integers (up to 20406487) that are relatively prime to 20406487.
20406487 has 4 divisors, whose sum is 20567296
The reverse of 20406487 is 78460402
Previous prime number is 127
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million four hundred six thousand four hundred eighty-seven
Scientific notation
2.0406487 × 10^7
Engineering notation
2.0406487 × 10^6
Prime Factorization
127 × 160681
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20406487
Product of the distinct prime numbers
The prime factorization of 20406487 is 127 × 160681.
Since it has a total of 2 prime factors.
7 , 10 , 91 , 38 , 955 , 101 , 5346 , 1826 , 9799 , 84086 , 327299 , 329314 , 9695808 , 6539258 , 30282738 , 77562448 , 496948492 , 600146413 , 8373850466 , 1815372426
n×2
40812974
n×3
61219461
n×4
81625948
n×5
102032435
n÷2
10203243.5
n÷3
6802162.3333333
n÷3
5101621.75
n÷5
4081297.4
n2
416424711681169
n3
8.4977654654005E+21
n4
1.7340954049874E+29
n5
3.5386795338636E+36
2 √n
4517.3539821449
3 √n
273.26840102793
4 √n
67.211263804104
5 √n
28.970343815428
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20406486
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20406487 can be divided by 4 positive divisors.
The sum of these divisors (counting 20406487) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101110110000011010111
3
Ternary
1102101202102211
4
Quaternary
1031312003113
5
Quinary
20211001422
6
Senary
2005214251
8
Octal
115660327
10
Decimal
20406487
12
Duodecimal
6a01387
16
Hexadecimal
13760d7
20
Vigesimal
67ag47
36
Base36
c5dqv
md5
af6781cc2f53b2da36682ba083022f3e
sha1
32944e3d9a3e87ba7d1c20d4583f52cf941160ae
sha256
262ff821d5090087e1922650c145b97b0c3196429caa0782fed1d1b4b1f2e17a
sha512
b2bd010742b32c76d74c54091f7fc94d059dd77a0d339e0d859af0719ae5956428d9eb8839de2fb810b76b65eceedf200851874a9d3885a92e39732a2f8904d3
ripemd-160
f59dca6e9a7e197bcb49b61ccfcf2b2a8fbbf18a
Diameter
40812974
Circumference
128217739.28955
Area
1.3082368149908E+15
Volume
3.5595356744042E+22
Surface area
5.2329472599632E+15
Circumference
128217739.28955
Perimeter
81625948
Area
416424711681169
Diagonal
28859130.67579
Surface area
2498548270087014
Volume
8.4977654654005E+21
Space diagonal
35345072.287994
Perimeter
61219461
Area
1.8031718953975E+14
Altitude
17672536.143997
Surface area
1.8031718953975E+14
Volume
1.0014712642529E+21
Height
9619710.2252634