20931490 is an even 8-digits composite number following 20931489
and preceding 20931491 . In scientific notation, it is written as 2.0931490 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 8372592 positive integers (up to 20931490) that are relatively prime to 20931490.
20931490 has 8 divisors, whose sum is 37676700
The reverse of 20931490 is 09413902
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million nine hundred thirty-one thousand four hundred ninety
Scientific notation
2.0931490 × 10^7
Engineering notation
2.0931490 × 10^6
Prime Factorization
2 × 5 × 2093149
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20931490
Product of the distinct prime numbers
The prime factorization of 20931490 is 2 × 5 × 2093149.
Since it has a total of 3 prime factors.
5 , 9 , 20 , 56 , 878 , 728 , 8689 , 6457 , 92982 , 65248 , 759321 , 664683 , 3233356 , 5378516 , 96438716 , 95282391 , 822667523 , 477089855 , 6340882410 , 5449332586
n×2
41862980
n×3
62794470
n×4
83725960
n×5
104657450
n÷2
10465745
n÷3
6977163.3333333
n÷3
5232872.5
n÷5
4186298
n2
438127273620100
n3
9.1706566465064E+21
n4
1.9195550788978E+29
n5
4.0179147938399E+36
2 √n
4575.0945345424
3 √n
275.59206872734
4 √n
67.63944510818
5 √n
29.117898572356
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
-20931489
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 20931490 can be divided by 8 positive divisors.
The sum of these divisors (counting 20931490) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111110110001110100010
3
Ternary
1110101102121101
4
Quaternary
1033312032202
5
Quinary
20324301430
6
Senary
2024345014
8
Octal
117661642
10
Decimal
20931490
12
Duodecimal
701516a
16
Hexadecimal
13f63a2
20
Vigesimal
6ag8ea
36
Base36
cgmua
md5
ed3fad59e2c8171d74ae1e89e0aff373
sha1
dfcd9fe0bc960bf43a5d13d35568e7105f5f7ffa
sha256
338fcb6ba8e0cebbf6571023ff6ec42aa4424be7ec0eaf5c0d2433b0bceaf00d
sha512
fe351cfb775a5000b0e54d07029c1534aa2434291bedaf3758ac18a0e6bcc95e221f983f9bcea15c587c991f22197389b526241adccd84d7d855331f75e9ac74
ripemd-160
12bf56902bc89ab5da035cbfab1c350ff6c79b86
Diameter
41862980
Circumference
131516430.42538
Area
1.3764174241422E+15
Volume
3.8413956732345E+22
Surface area
5.5056696965689E+15
Circumference
131516430.42538
Perimeter
83725960
Area
438127273620100
Diagonal
29601597.038677
Surface area
2628763641720600
Volume
9.1706566465064E+21
Space diagonal
36254404.15812
Perimeter
62794470
Area
1.8971467452291E+14
Altitude
18127202.07906
Surface area
1.8971467452291E+14
Volume
1.0807722504464E+21
Height
9867199.0128923