20151291 is an odd 8-digits composite number following 20151290
and preceding 20151292 . In scientific notation, it is written as 2.0151291 × 10^7.
The sum of its digits is 21. It has a total of 4 prime factors and 16 positive divisors.
There are 13083840 positive integers (up to 20151291) that are relatively prime to 20151291.
20151291 has 16 divisors, whose sum is 27578880
The reverse of 20151291 is 19215102
Previous prime number is 1063
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million one hundred fifty-one thousand two hundred ninety-one
Scientific notation
2.0151291 × 10^7
Engineering notation
2.0151291 × 10^6
Prime Factorization
3 × 71 × 1063 × 89
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20151291
Product of the distinct prime numbers
The prime factorization of 20151291 is 3 × 71 × 1063 × 89.
Since it has a total of 4 prime factors.
2 , 3 , 5 , 79 , 629 , 533 , 2956 , 1566 , 48465 , 51636 , 968747 , 307709 , 9831184 , 1889935 , 8043631 , 1069897 , 906527907 , 743273246 , 5187949236 , 8056276537
n×2
40302582
n×3
60453873
n×4
80605164
n×5
100756455
n÷2
10075645.5
n÷3
6717097
n÷3
5037822.75
n÷5
4030258.2
n2
406074528966681
n3
8.1829260008955E+21
n4
1.6489652307551E+29
n5
3.3228778213829E+36
2 √n
4489.0189351349
3 √n
272.12448796277
4 √n
67.000141306828
5 √n
28.897520129151
1 , 3 , 71 , 89 , 213 , 267 , 1063 , 3189 , 6319 , 18957 , 75473 , 94607 , 226419 , 283821 , 6717097 , 20151291
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20151290
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20151291 can be divided by 16 positive divisors.
The sum of these divisors (counting 20151291) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100110111101111111011
3
Ternary
1101220210101010
4
Quaternary
1030313233323
5
Quinary
20124320131
6
Senary
1555525003
8
Octal
114675773
10
Decimal
20151291
12
Duodecimal
68b9763
16
Hexadecimal
1337bfb
20
Vigesimal
65ii4b
36
Base36
bzwu3
md5
2d70e50c2cf3ad40c26c10a156575147
sha1
1eadf598af47091ff76e77b2af91bf95a35b0e52
sha256
9ce17a262e380ce79b6f5089bb631c4360db062b3a10536fe9586b72e0ed370d
sha512
7de86815ebeb21973632c2582f75e914ef7f3321de4d0fc8410cadbd34b2e02fc73fcbb43e5119880395cad1257f5f403c3d49b2d49fedda4e6fa86754f345d3
ripemd-160
754e1669551ccb4a72e751e1f66c2a99b5be9254
Diameter
40302582
Circumference
126614295.5319
Area
1.2757207570117E+15
Volume
3.4276560279043E+22
Surface area
5.1028830280466E+15
Circumference
126614295.5319
Perimeter
80605164
Area
406074528966681
Diagonal
28498229.031527
Surface area
2436447173800086
Volume
8.1829260008955E+21
Space diagonal
34903059.850105
Perimeter
60453873
Area
1.7583542895747E+14
Altitude
17451529.925053
Surface area
1.7583542895747E+14
Volume
9.6436707753016E+20
Height
9499409.6771756