20687798 is an even 8-digits composite number following 20687797
and preceding 20687799 . In scientific notation, it is written as 2.0687798 × 10^7.
The sum of its digits is 47. It has a total of 3 prime factors and 8 positive divisors.
There are 10316920 positive integers (up to 20687798) that are relatively prime to 20687798.
20687798 has 8 divisors, whose sum is 31112640
The reverse of 20687798 is 89778602
Previous prime number is 389
Is Prime? no
Number parity even
Number length 8
Sum of Digits 47
Digital Root 2
Name
twenty million six hundred eighty-seven thousand seven hundred ninety-eight
Scientific notation
2.0687798 × 10^7
Engineering notation
2.0687798 × 10^6
Prime Factorization
2 × 389 × 26591
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20687798
Product of the distinct prime numbers
The prime factorization of 20687798 is 2 × 389 × 26591.
Since it has a total of 3 prime factors.
9 , 6 , 82 , 14 , 385 , 993 , 8148 , 2266 , 41408 , 42329 , 406864 , 446075 , 8969293 , 8398417 , 75880766 , 94460129 , 785040562 , 415791004 , 3790630478 , 3388607684
n×2
41375596
n×3
62063394
n×4
82751192
n×5
103438990
n÷2
10343899
n÷3
6895932.6666667
n÷3
5171949.5
n÷5
4137559.6
n2
427984986088804
n3
8.854066939238E+21
n4
1.8317114831743E+29
n5
3.7894077158191E+36
2 √n
4548.3841086698
3 √n
274.51837683304
4 √n
67.441708969078
5 √n
29.049780379007
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
-20687797
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 20687798 can be divided by 8 positive divisors.
The sum of these divisors (counting 20687798) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110111010101110110110
3
Ternary
1102221001022202
4
Quaternary
1032322232312
5
Quinary
20244002143
6
Senary
2015224502
8
Octal
116725666
10
Decimal
20687798
12
Duodecimal
6b18132
16
Hexadecimal
13babb6
20
Vigesimal
695j9i
36
Base36
cbet2
md5
dec9470c47c7550dde1cffe80f6828da
sha1
555b6a05df990cf910bc71fa1d7053de34f7cfc4
sha256
c636d71087c753f1123518dc4fcc92c594460423c5d984a2d4b2380f842a8ee9
sha512
44a3810e4303df2287ed3d30f00821994af418121eace89a09df2e1a5e515cd5f3bd71dd9aab7cebead46ac3f682a4220b79de4b8a5eca40ff3147489229d106
ripemd-160
9083afefbbb063f5925c99f8809cdbb555d6f84b
Diameter
41375596
Circumference
129985268.4315
Area
1.3445544881433E+15
Volume
3.7087828867603E+22
Surface area
5.3782179525733E+15
Circumference
129985268.4315
Perimeter
82751192
Area
427984986088804
Diagonal
29256964.507235
Surface area
2567909916532824
Volume
8.854066939238E+21
Space diagonal
35832317.232722
Perimeter
62063394
Area
1.8532293519562E+14
Altitude
17916158.616361
Surface area
1.8532293519562E+14
Volume
1.0434617956358E+21
Height
9752321.5024117