20490638 is an even 8-digits composite number following 20490637
and preceding 20490639 . In scientific notation, it is written as 2.0490638 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 8781696 positive integers (up to 20490638) that are relatively prime to 20490638.
20490638 has 8 divisors, whose sum is 35126832
The reverse of 20490638 is 83609402
Previous prime number is 7
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million four hundred ninety thousand six hundred thirty-eight
Scientific notation
2.0490638 × 10^7
Engineering notation
2.0490638 × 10^6
Prime Factorization
2 × 7 × 1463617
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20490638
Product of the distinct prime numbers
The prime factorization of 20490638 is 2 × 7 × 1463617.
Since it has a total of 3 prime factors.
1 , 9 , 38 , 30 , 90 , 108 , 8421 , 6962 , 24664 , 90407 , 160792 , 338330 , 3970988 , 237444 , 72698183 , 59394505 , 484054067 , 968627789 , 5259861694 , 3181739769
n×2
40981276
n×3
61471914
n×4
81962552
n×5
102453190
n÷2
10245319
n÷3
6830212.6666667
n÷3
5122659.5
n÷5
4098127.6
n2
419866245647044
n3
8.6033272479727E+21
n4
1.7628766423374E+29
n5
3.6122467116792E+36
2 √n
4526.6585910581
3 √n
273.64351494589
4 √n
67.280447316127
5 √n
28.994197720774
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
-20490637
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 20490638 can be divided by 8 positive divisors.
The sum of these divisors (counting 20490638) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110001010100110001110
3
Ternary
1102120000212112
4
Quaternary
1032022212032
5
Quinary
20221200023
6
Senary
2011104022
8
Octal
116124616
10
Decimal
20490638
12
Duodecimal
6a42012
16
Hexadecimal
138a98e
20
Vigesimal
6816bi
36
Base36
c76oe
md5
29c880dde80de3f1678f3225524a31a0
sha1
149bbbb2067c8f0b68f05fac53fd67f18ebc62cb
sha256
92abc8ad9ebd6ad4e08b531189e7b7d251f22749370629b4e2886e5ee8daa529
sha512
0f324bc274cbd7a413c47954339f467c4a1e96fccb32f0d320200ebd1da85ce24aefb6249ba89e299f2841ef70606f7a2f219878f40bacfbd460619913c08a4b
ripemd-160
a7b5983a4cfab936ff07f2a8c877e93674b098eb
Diameter
40981276
Circumference
128746475.61634
Area
1.3190487128151E+15
Volume
3.603753290488E+22
Surface area
5.2761948512603E+15
Circumference
128746475.61634
Perimeter
81962552
Area
419866245647044
Diagonal
28978138.161278
Surface area
2519197473882264
Volume
8.6033272479727E+21
Space diagonal
35490826.095502
Perimeter
61471914
Area
1.8180741746097E+14
Altitude
17745413.047751
Surface area
1.8180741746097E+14
Volume
1.0139118396347E+21
Height
9659379.3870925