20687958 is an even 8-digits composite number following 20687957
and preceding 20687959 . In scientific notation, it is written as 2.0687958 × 10^7.
The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors.
There are 6709392 positive integers (up to 20687958) that are relatively prime to 20687958.
20687958 has 16 divisors, whose sum is 35412960
The reverse of 20687958 is 85978602
Previous prime number is 37
Is Prime? no
Number parity even
Number length 8
Sum of Digits 45
Digital Root 9
Name
twenty million six hundred eighty-seven thousand nine hundred fifty-eight
Scientific notation
2.0687958 × 10^7
Engineering notation
2.0687958 × 10^6
Prime Factorization
2 × 9 × 37 × 31063
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20687958
Product of the distinct prime numbers
The prime factorization of 20687958 is 2 × 9 × 37 × 31063.
Since it has a total of 4 prime factors.
2 , 5 , 82 , 23 , 762 , 634 , 9276 , 2622 , 17109 , 5607 , 603319 , 491798 , 9241773 , 4283853 , 76575205 , 40918714 , 737621323 , 730804084 , 9911642361 , 7449310056
n×2
41375916
n×3
62063874
n×4
82751832
n×5
103439790
n÷2
10343979
n÷3
6895986
n÷3
5171989.5
n÷5
4137591.6
n2
427991606209764
n3
8.8542723736201E+21
n4
1.8317681498601E+29
n5
3.7895542550044E+36
2 √n
4548.4016972998
3 √n
274.51908454211
4 √n
67.441839367709
5 √n
29.049825313229
1 , 2 , 9 , 18 , 37 , 74 , 333 , 666 , 31063 , 62126 , 279567 , 559134 , 1149331 , 2298662 , 10343979 , 20687958
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20687957
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20687958 can be divided by 16 positive divisors.
The sum of these divisors (counting 20687958) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001110111010110001010110
3
Ternary
1102221001112200
4
Quaternary
1032322301112
5
Quinary
20244003313
6
Senary
2015225330
8
Octal
116726126
10
Decimal
20687958
12
Duodecimal
6b18246
16
Hexadecimal
13bac56
20
Vigesimal
695jhi
36
Base36
cbexi
md5
97ddb26222755da90dc96411ee0a3e25
sha1
0838279d59dd1907781e6f57a678bfd09fa792a9
sha256
809f3709b157c32f67c2b8e8bd39f2491e6f488384188322f3c325528a2a32f7
sha512
351cf7e4450b9bc3e67c5e51a08709f7f88c7fb6f005034723d7c0c8bc189c1a8dd2539366823bbbdccaaf8818e14cd9d4107805a0accab864ae1804ae882cde
ripemd-160
cdb7dd15502417642a99132388bed4ef39e12111
Diameter
41375916
Circumference
129986273.74115
Area
1.3445752858667E+15
Volume
3.7088689389131E+22
Surface area
5.3783011434668E+15
Circumference
129986273.74115
Perimeter
82751832
Area
427991606209764
Diagonal
29257190.781405
Surface area
2567949637258584
Volume
8.8542723736201E+21
Space diagonal
35832594.360851
Perimeter
62063874
Area
1.8532580179208E+14
Altitude
17916297.180426
Surface area
1.8532580179208E+14
Volume
1.0434860063099E+21
Height
9752396.927135