20402891 is an odd 8-digits composite number following 20402890
and preceding 20402892 . In scientific notation, it is written as 2.0402891 × 10^7.
The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors.
There are 20280552 positive integers (up to 20402891) that are relatively prime to 20402891.
20402891 has 4 divisors, whose sum is 20525232
The reverse of 20402891 is 19820402
Previous prime number is 167
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty million four hundred two thousand eight hundred ninety-one
Scientific notation
2.0402891 × 10^7
Engineering notation
2.0402891 × 10^6
Prime Factorization
167 × 122173
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20402891
Product of the distinct prime numbers
The prime factorization of 20402891 is 167 × 122173.
Since it has a total of 2 prime factors.
2 , 2 , 75 , 33 , 839 , 735 , 4567 , 19 , 84971 , 87375 , 985963 , 190004 , 4639859 , 8109639 , 39682835 , 28106270 , 264803601 , 192536891 , 4425919563 , 1762818064
n×2
40805782
n×3
61208673
n×4
81611564
n×5
102014455
n÷2
10201445.5
n÷3
6800963.6666667
n÷3
5100722.75
n÷5
4080578.2
n2
416277961157881
n3
8.4932738672065E+21
n4
1.7328734094576E+29
n5
3.5355627289962E+36
2 √n
4516.9559439959
3 √n
273.25234843809
4 √n
67.208302641831
5 √n
28.969322721495
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
-20402890
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 20402891 can be divided by 4 positive divisors.
The sum of these divisors (counting 20402891) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101110101001011001011
3
Ternary
1102101120111122
4
Quaternary
1031311023023
5
Quinary
20210343031
6
Senary
2005145455
8
Octal
115651313
10
Decimal
20402891
12
Duodecimal
69bb28b
16
Hexadecimal
13752cb
20
Vigesimal
67a74b
36
Base36
c5ayz
md5
28c89bc1c455d591605b7069f1c3eedc
sha1
3764d721aba7cc029c1ad0198b16d224dd25e91c
sha256
3ee1a4f97d998f20a230c7612ba01c2eacb14d3d2dbe77c0abe6fc19ab7e2300
sha512
9d7ae8f07d0dec965ef6176e3f13947e2566c30c4fce7a3c37edfd0a43cef86ac51be55567b3067acfb148b472fab66f9306c90b319c1e8c9d0e7e82f8e4f003
ripemd-160
5f534ebf80dff911ec77c0d3899452bc92fafc9b
Diameter
40805782
Circumference
128195144.95519
Area
1.3077757846249E+15
Volume
3.5576542381523E+22
Surface area
5.2311031384997E+15
Circumference
128195144.95519
Perimeter
81611564
Area
416277961157881
Diagonal
28854045.16382
Surface area
2497667766947286
Volume
8.4932738672065E+21
Space diagonal
35338843.83329
Perimeter
61208673
Area
1.8025364469916E+14
Altitude
17669421.916645
Surface area
1.8025364469916E+14
Volume
1.0009419243294E+21
Height
9618015.0546067