20507989 is an odd 8-digits composite number following 20507988
and preceding 20507990 . In scientific notation, it is written as 2.0507989 × 10^7.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 20479500 positive integers (up to 20507989) that are relatively prime to 20507989.
20507989 has 4 divisors, whose sum is 20536480
The reverse of 20507989 is 98970502
Previous prime number is 739
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty million five hundred seven thousand nine hundred eighty-nine
Scientific notation
2.0507989 × 10^7
Engineering notation
2.0507989 × 10^6
Prime Factorization
739 × 27751
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20507989
Product of the distinct prime numbers
The prime factorization of 20507989 is 739 × 27751.
Since it has a total of 2 prime factors.
6 , 7 , 82 , 62 , 548 , 711 , 8818 , 4115 , 50270 , 3165 , 456575 , 734640 , 4690765 , 4417210 , 2449352 , 12120568 , 426202467 , 233004051 , 982693602 , 622940965
n×2
41015978
n×3
61523967
n×4
82031956
n×5
102539945
n÷2
10253994.5
n÷3
6835996.3333333
n÷3
5126997.25
n÷5
4101597.8
n2
420577612824121
n3
8.6252010574433E+21
n4
1.7688552840884E+29
n5
3.6275664708676E+36
2 √n
4528.5747205937
3 √n
273.72073149547
4 √n
67.29468567869
5 √n
28.999106382116
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
-20507988
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 20507989 can be divided by 4 positive divisors.
The sum of these divisors (counting 20507989) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110001110110101010101
3
Ternary
1102120220200011
4
Quaternary
1032032311111
5
Quinary
20222223424
6
Senary
2011320221
8
Octal
116166525
10
Decimal
20507989
12
Duodecimal
6a50071
16
Hexadecimal
138ed55
20
Vigesimal
6839j9
36
Base36
c7k2d
md5
ee08a37c8c096391b2b1319fd0e28e77
sha1
43814a73cc08fbf0268e69f2cbf6c04f60747fb8
sha256
7a8236f08bb1b1254f277ce19e741b4cd2a47607181badc2beb66c5c68505a8c
sha512
39da60e638fdce62bd8ab8143f55713115431ac4dd8c00c4f11008436ac229292c3d1dc258249aeb64e264c0295081a3322026d9be797eb6330226f6cc61a04b
ripemd-160
04c3eb84781c53c4e2c0dbf8f2c92a5e5dccd869
Diameter
41015978
Circumference
128855495.1646
Area
1.3212835387126E+15
Volume
3.6129157703732E+22
Surface area
5.2851341548504E+15
Circumference
128855495.1646
Perimeter
82031956
Area
420577612824121
Diagonal
29002676.180798
Surface area
2523465676944726
Volume
8.6252010574433E+21
Space diagonal
35520878.909064
Perimeter
61523967
Area
1.8211544848435E+14
Altitude
17760439.454532
Surface area
1.8211544848435E+14
Volume
1.0164896928026E+21
Height
9667558.7269328