28751491 is an odd 8-digits prime number following 28751490
and preceding 28751492 . In scientific notation, it is written as 2.8751491 × 10^7.
The sum of its digits is 37. It has a total of 1 prime factors and 2 positive divisors.
There are 28751490 positive integers (up to 28751491) that are relatively prime to 28751491.
28751491 has 2 divisors, whose sum is 28751492
The reverse of 28751491 is 19415782
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 37 Digital Root 1
Name
twenty-eight million seven hundred fifty-one thousand four hundred ninety-one
Scientific notation
2.8751491 × 10^7
Engineering notation
2.8751491 × 10^6
Prime Factorization
28751491
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
28751491 Product of the distinct prime numbers
The prime factorization of 28751491 is 28751491.
Since it has a total of 1 prime factors.
2 , 3 , 7 , 35 , 384 , 140 , 8214 , 5206 , 27116 , 32058 , 303703 , 873975 , 2820250 , 9392362 , 10145029 , 1374057 , 979550167 , 659897489 , 9782453870 , 8848009242
n×2
57502982
n×3
86254473
n×4
115005964
n×5
143757455
n÷2
14375745.5
n÷3
9583830.3333333
n÷3
7187872.75
n÷5
5750298.2
n2
826648234723081
n3
2.3767369280807E+22
n4
6.8334730397079E+29
n5
1.964725385999E+37
2 √n5362.0416820461
3 √n306.35157946476
4 √n73.225963169125
5 √n31.026449083017
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
28751492 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
14375746 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
5362.0417752942 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999304384 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28751491 can be divided by 2 positive divisors.
The sum of these divisors (counting 28751491) is 28751492, the average is 14375746.
Base
System
Value
2
Binary
1101101101011011010000011
3
Ternary
2000002201122001
4
Quaternary
1231223122003
5
Quinary
24330021431
6
Senary
2504124431
8
Octal
155533203
10
Decimal
28751491
12
Duodecimal
9766717
16
Hexadecimal
1b6b683
20
Vigesimal
8jdieb
36
Base36
h48sj
md5
c7dc109e51247562b8c82e3c42491b2d
sha1
6072a40b979f4b5bd6fc3d84f29138b4ec4cb07e
sha256
19dabc02044a814f7ea260ac1a3997b5108551e3522b6ff7d404722e15c9aca9
sha512
c501f8b2dcb9dcc31e2e1395ae1860f1e3cdc149df7967ce4f35139b253cc199693bbdc1076d9b16a61ad570d89ee7af9a3d6610c5f5d37e2a5d2bf45705fa83
ripemd-160
9fab2f95ef0bbb4b685a8715178309366512651f
Diameter
57502982
Circumference
180650945.81071
Area
2.596992021309E+15
Volume
9.9556523636983E+22
Surface area
1.0387968085236E+16
Circumference
180650945.81071
Perimeter
115005964
Area
826648234723081
Diagonal
40660748.510648
Surface area
4959889408338486
Volume
2.3767369280807E+22
Space diagonal
49799043.205359
Perimeter
86254473
Area
3.5794918563187E+14
Altitude
24899521.60268
Surface area
3.5794918563187E+14
Volume
2.8010113315705E+21
Height
13553582.836883