20151491 is an odd 8-digits composite number following 20151490
and preceding 20151492 . In scientific notation, it is written as 2.0151491 × 10^7.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 19456584 positive integers (up to 20151491) that are relatively prime to 20151491.
20151491 has 4 divisors, whose sum is 20846400
The reverse of 20151491 is 19415102
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million one hundred fifty-one thousand four hundred ninety-one
Scientific notation
2.0151491 × 10^7
Engineering notation
2.0151491 × 10^6
Prime Factorization
29 × 694879
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20151491
Product of the distinct prime numbers
The prime factorization of 20151491 is 29 × 694879.
Since it has a total of 2 prime factors.
8 , 3 , 4 , 95 , 738 , 527 , 7504 , 9218 , 8329 , 38334 , 708355 , 521992 , 4405018 , 4076812 , 47781644 , 54731645 , 79727726 , 284992389 , 2248218245 , 5605945755
n×2
40302982
n×3
60454473
n×4
80605964
n×5
100757455
n÷2
10075745.5
n÷3
6717163.6666667
n÷3
5037872.75
n÷5
4030298.2
n2
406082589523081
n3
8.1831696480311E+21
n4
1.6490306951377E+29
n5
3.3230427211791E+36
2 √n
4489.041211662
3 √n
272.12538823127
4 √n
67.000307549011
5 √n
28.897577490052
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
-20151490
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 20151491 can be divided by 4 positive divisors.
The sum of these divisors (counting 20151491) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110111110011000011
3
Ternary
1101220210122112
4
Quaternary
1030313303003
5
Quinary
20124321431
6
Senary
1555525535
8
Octal
114676303
10
Decimal
20151491
12
Duodecimal
68b98ab
16
Hexadecimal
1337cc3
20
Vigesimal
65iieb
36
Base36
bzwzn
md5
7d6309bdf53eba42094f60c560ec7d46
sha1
7b30aef822eb3199103921abbd03f9e3bb36c033
sha256
a651e1edd117dd26c49b0f82a2da02e74c8731c688a7baf7b45e0ffe5e0960b6
sha512
73382fea9c4cb4747593bbeae1fdab058478b4d8bbc3d8b8de29d0a741ccb20730b714a932f7833d23a48469ba0af87990941b1e4f518aa8f42a7c060330b140
ripemd-160
cd22d9f3f8c4e04d715cebef410cc1f043229f57
Diameter
40302982
Circumference
126615552.16896
Area
1.2757460799964E+15
Volume
3.4277580865778E+22
Surface area
5.1029843199857E+15
Circumference
126615552.16896
Perimeter
80605964
Area
406082589523081
Diagonal
28498511.874239
Surface area
2436495537138486
Volume
8.1831696480311E+21
Space diagonal
34903406.260267
Perimeter
60454473
Area
1.7583891928078E+14
Altitude
17451703.130133
Surface area
1.7583891928078E+14
Volume
9.6439579162045E+20
Height
9499503.9580798