20787631 is an odd 8-digits composite number following 20787630
and preceding 20787632 . In scientific notation, it is written as 2.0787631 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 20764600 positive integers (up to 20787631) that are relatively prime to 20787631.
20787631 has 4 divisors, whose sum is 20810664
The reverse of 20787631 is 13678702
Previous prime number is 941
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million seven hundred eighty-seven thousand six hundred thirty-one
Scientific notation
2.0787631 × 10^7
Engineering notation
2.0787631 × 10^6
Prime Factorization
941 × 22091
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20787631
Product of the distinct prime numbers
The prime factorization of 20787631 is 941 × 22091.
Since it has a total of 2 prime factors.
3 , 7 , 58 , 80 , 46 , 969 , 7536 , 9079 , 58690 , 29070 , 450039 , 461038 , 6676149 , 985525 , 919444 , 54013961 , 935961913 , 549676144 , 642764578 , 1669026523
n×2
41575262
n×3
62362893
n×4
83150524
n×5
103938155
n÷2
10393815.5
n÷3
6929210.3333333
n÷3
5196907.75
n÷5
4157526.2
n2
432125602592161
n3
8.9828675723385E+21
n4
1.8673253641564E+29
n5
3.8817270627024E+36
2 √n
4559.3454574094
3 √n
274.95924905803
4 √n
67.522925420996
5 √n
29.07776349087
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
-20787630
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 20787631 can be divided by 4 positive divisors.
The sum of these divisors (counting 20787631) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111010011000110101111
3
Ternary
1110010010021021
4
Quaternary
1033103012233
5
Quinary
20310201011
6
Senary
2021315011
8
Octal
117230657
10
Decimal
20787631
12
Duodecimal
6b65a67
16
Hexadecimal
13d31af
20
Vigesimal
69i91b
36
Base36
cdju7
md5
19a6275ed6bf95088e7ccb94b0ade72e
sha1
440e2d5d66c01ceecdb12948f0ea159c5ae7d306
sha256
3836a6d4df5c0a359d0fe1130cc20ab7c538c0997b03e510986ce1d19d573241
sha512
5d1682905995a60be7cc480a492660fd9f212ecd61c842713b526e4ab0a4582f3c1d1f11ce9394513ff69e6f5fb714c4a7ea56d7daf6521b856a7e593647df30
ripemd-160
37e30d0450e4c59ac5e0662ccdf1bc30380cb7e8
Diameter
41575262
Circumference
130612537.67027
Area
1.3575626185316E+15
Volume
3.7627347697905E+22
Surface area
5.4302504741264E+15
Circumference
130612537.67027
Perimeter
83150524
Area
432125602592161
Diagonal
29398149.689807
Surface area
2592753615552966
Volume
8.9828675723385E+21
Space diagonal
36005233.060994
Perimeter
62362893
Area
1.8711587473524E+14
Altitude
18002616.530497
Surface area
1.8711587473524E+14
Volume
1.0586410958169E+21
Height
9799383.2299358