20491837 is an odd 8-digits composite number following 20491836
and preceding 20491838 . In scientific notation, it is written as 2.0491837 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 19830780 positive integers (up to 20491837) that are relatively prime to 20491837.
20491837 has 4 divisors, whose sum is 21152896
The reverse of 20491837 is 73819402
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million four hundred ninety-one thousand eight hundred thirty-seven
Scientific notation
2.0491837 × 10^7
Engineering notation
2.0491837 × 10^6
Prime Factorization
31 × 661027
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20491837
Product of the distinct prime numbers
The prime factorization of 20491837 is 31 × 661027.
Since it has a total of 2 prime factors.
5 , 10 , 70 , 86 , 515 , 543 , 3111 , 8215 , 16336 , 40797 , 557664 , 288292 , 6655098 , 4010323 , 94169376 , 61907988 , 451006920 , 702917428 , 7673418119 , 5029605568
n×2
40983674
n×3
61475511
n×4
81967348
n×5
102459185
n÷2
10245918.5
n÷3
6830612.3333333
n÷3
5122959.25
n÷5
4098367.4
n2
419915383634569
n3
8.6048375952321E+21
n4
1.7632892941297E+29
n5
3.613303679915E+36
2 √n
4526.791026765
3 √n
273.64885221544
4 √n
67.281431515426
5 √n
28.994537029188
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
-20491836
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 20491837 can be divided by 4 positive divisors.
The sum of these divisors (counting 20491837) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110001010111000111101
3
Ternary
1102120002111221
4
Quaternary
1032022320331
5
Quinary
20221214322
6
Senary
2011113341
8
Octal
116127075
10
Decimal
20491837
12
Duodecimal
6a42851
16
Hexadecimal
138ae3d
20
Vigesimal
6819bh
36
Base36
c77lp
md5
f1c79545e2309691d49ce17f5f79c985
sha1
7cf99abd8be8c957d23f740775d3ebf80df6e7ad
sha256
18d2ba305491057934b040c6d36bb67525e840d342737866d453a1f4ee547356
sha512
bd0ac4cefcbd70d8c3f99a60bbd7d67264190b7f821fcbfc13c9e759dd392fae66255093b381232537b09dfc428fd0034088fe1a9842c97dd42ee820bd36d1c4
ripemd-160
5386b0721cb679449c2bb86ea8c5b918b2b08b69
Diameter
40983674
Circumference
128754009.15552
Area
1.3192030843557E+15
Volume
3.6043859432686E+22
Surface area
5.2768123374228E+15
Circumference
128754009.15552
Perimeter
81967348
Area
419915383634569
Diagonal
28979833.803339
Surface area
2519492301807414
Volume
8.6048375952321E+21
Space diagonal
35492902.82442
Perimeter
61475511
Area
1.8182869483371E+14
Altitude
17746451.41221
Surface area
1.8182869483371E+14
Volume
1.0140898357663E+21
Height
9659944.6011129