28488961 is an odd 8-digits composite number following 28488960
and preceding 28488962 . In scientific notation, it is written as 2.8488961 × 10^7.
The sum of its digits is 46. It has a total of 2 prime factors and 4 positive divisors.
There are 26989524 positive integers (up to 28488961) that are relatively prime to 28488961.
28488961 has 4 divisors, whose sum is 29988400
The reverse of 28488961 is 16988482
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 46
Digital Root 1
Name
twenty-eight million four hundred eighty-eight thousand nine hundred sixty-one
Scientific notation
2.8488961 × 10^7
Engineering notation
2.8488961 × 10^6
Prime Factorization
19 × 1499419
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28488961
Product of the distinct prime numbers
The prime factorization of 28488961 is 19 × 1499419.
Since it has a total of 2 prime factors.
3 , 3 , 64 , 77 , 855 , 187 , 3896 , 2744 , 56349 , 3463 , 287093 , 453960 , 2642246 , 5782914 , 46226465 , 84441421 , 5456982 , 71080712 , 188873172 , 8786565704
n×2
56977922
n×3
85466883
n×4
113955844
n×5
142444805
n÷2
14244480.5
n÷3
9496320.3333333
n÷3
7122240.25
n÷5
5697792.2
n2
811620898859521
n3
2.3122236134394E+22
n4
6.5872848346554E+29
n5
1.8766490075039E+37
2 √n
5337.5051288032
3 √n
305.41629439191
4 √n
73.05823108181
5 √n
30.969580464312
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
-28488960
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 28488961 can be divided by 4 positive divisors.
The sum of these divisors (counting 28488961) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101100101011010100000001
3
Ternary
1222121101111201
4
Quaternary
1230223110001
5
Quinary
24243121321
6
Senary
2454341201
8
Octal
154532401
10
Decimal
28488961
12
Duodecimal
965a801
16
Hexadecimal
1b2b501
20
Vigesimal
8i1281
36
Base36
gym81
md5
d0d88a91e3659d0f05b979152486248a
sha1
592db3c3177b298d0176183dab2ff304722bb91b
sha256
cc3f68dd81f2773e201b389396a3333f95484896984274752c469041a2adadd6
sha512
e4550e33bd08ae93c4056c582fcc0229bc9243e645935b0e76a40ef0bc4222c19b157f9ca6bcc528abfa7dcce5714ec5fe6d3fb410149fd3ec3ada4fcc787be6
ripemd-160
533b0cb3658c83dafe65c46297826d15c211ba83
Diameter
56977922
Circumference
179001421.17201
Area
2.549782253357E+15
Volume
9.6854196232507E+22
Surface area
1.0199129013428E+16
Circumference
179001421.17201
Perimeter
113955844
Area
811620898859521
Diagonal
40289475.024118
Surface area
4869725393157126
Volume
2.3122236134394E+22
Space diagonal
49344327.906848
Perimeter
85466883
Area
3.5144215832735E+14
Altitude
24672163.953424
Surface area
3.5144215832735E+14
Volume
2.7249816611378E+21
Height
13429825.008039