20646857 is an odd 8-digits composite number following 20646856
and preceding 20646858 . In scientific notation, it is written as 2.0646857 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 15141120 positive integers (up to 20646857) that are relatively prime to 20646857.
20646857 has 8 divisors, whose sum is 23724096
The reverse of 20646857 is 75864602
Previous prime number is 187
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million six hundred forty-six thousand eight hundred fifty-seven
Scientific notation
2.0646857 × 10^7
Engineering notation
2.0646857 × 10^6
Prime Factorization
7 × 187 × 15773
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20646857
Product of the distinct prime numbers
The prime factorization of 20646857 is 7 × 187 × 15773.
Since it has a total of 3 prime factors.
5 , 10 , 7 , 18 , 158 , 859 , 6546 , 212 , 71610 , 77949 , 966678 , 17735 , 8169172 , 2859553 , 95308607 , 94476786 , 873260186 , 404252262 , 757993510 , 598332612
n×2
41293714
n×3
61940571
n×4
82587428
n×5
103234285
n÷2
10323428.5
n÷3
6882285.6666667
n÷3
5161714.25
n÷5
4129371.4
n2
426292703978449
n3
8.8016044991864E+21
n4
1.8172546946526E+29
n5
3.752059781307E+36
2 √n
4543.8812704559
3 √n
274.33716729378
4 √n
67.408317516876
5 √n
29.038273406194
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
-20646856
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 20646857 can be divided by 8 positive divisors.
The sum of these divisors (counting 20646857) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110110000101111001001
3
Ternary
1102211222011102
4
Quaternary
1032300233021
5
Quinary
20241144412
6
Senary
2014311145
8
Octal
116605711
10
Decimal
20646857
12
Duodecimal
6ab84b5
16
Hexadecimal
13b0bc9
20
Vigesimal
690h2h
36
Base36
caj7t
md5
7daab631f9636915a696b03c863ec6b2
sha1
945b28eff0d748d2417581c85d9b24f115ea07a9
sha256
06748f5e204260b8f7a783c83ddd3ed4309507086e1c4dc8d6fab83d23344078
sha512
76bd680787a5ee23f80a8e50d681ccec8856bc4dbfaba94ec8fee8dc99589a4834d172a08868824355843c43b27e78499623c1894ecfcadd368b80f0fad08b58
ripemd-160
221bee362281a8d6a23858ed2a06e8014bcd90fc
Diameter
41293714
Circumference
129728028.54184
Area
1.3392380270976E+15
Volume
3.6868074712596E+22
Surface area
5.3569521083905E+15
Circumference
129728028.54184
Perimeter
82587428
Area
426292703978449
Diagonal
29199065.189778
Surface area
2557756223870694
Volume
8.8016044991864E+21
Space diagonal
35761405.340609
Perimeter
61940571
Area
1.8459015554665E+14
Altitude
17880702.670305
Surface area
1.8459015554665E+14
Volume
1.0372790377828E+21
Height
9733021.729926