28692721 is an odd 8-digits composite number following 28692720
and preceding 28692722 . In scientific notation, it is written as 2.8692721 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 28329444 positive integers (up to 28692721) that are relatively prime to 28692721.
28692721 has 4 divisors, whose sum is 29056000
The reverse of 28692721 is 12729682
Previous prime number is 79
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty-eight million six hundred ninety-two thousand seven hundred twenty-one
Scientific notation
2.8692721 × 10^7
Engineering notation
2.8692721 × 10^6
Prime Factorization
79 × 363199
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28692721
Product of the distinct prime numbers
The prime factorization of 28692721 is 79 × 363199.
Since it has a total of 2 prime factors.
8 , 5 , 38 , 37 , 937 , 661 , 1156 , 9504 , 58091 , 88577 , 356470 , 309845 , 4738251 , 594604 , 15822710 , 89941160 , 212177426 , 41878407 , 9962904654 , 1201195911
n×2
57385442
n×3
86078163
n×4
114770884
n×5
143463605
n÷2
14346360.5
n÷3
9564240.3333333
n÷3
7173180.25
n÷5
5738544.2
n2
823272238383841
n3
2.3621920642993E+22
n4
6.7777717849354E+29
n5
1.9447271482682E+37
2 √n
5356.5586900547
3 √n
306.14270260338
4 √n
73.188514741417
5 √n
31.013754665708
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
-28692720
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 28692721 can be divided by 4 positive divisors.
The sum of these divisors (counting 28692721) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101101011101000011110001
3
Ternary
1222222202000101
4
Quaternary
1231131003301
5
Quinary
24321131341
6
Senary
2502552401
8
Octal
155350361
10
Decimal
28692721
12
Duodecimal
9738701
16
Hexadecimal
1b5d0f1
20
Vigesimal
8j6bg1
36
Base36
h2zg1
md5
701ded208b227c5a4a233d27f8752f7a
sha1
174488396c6a334d43315369de0a86f88edd1ca9
sha256
0a6d216a25930d895cd8f09b50f047a3aa481c92611109fd6678f8ee0060c4a7
sha512
1542bbc7f77936aa7cd750e16966b3bb72b442ffe8689a70548a5d0fffe4a41d1ce077949abb2f5f36b87a7182eb2cd8550a0aa0c73cf8d08639fadb15044386
ripemd-160
d66ce106b0188be3cf4bbd331b668a6148d94a43
Diameter
57385442
Circumference
180281683.0102
Area
2.5863860160111E+15
Volume
9.8947269807611E+22
Surface area
1.0345544064044E+16
Circumference
180281683.0102
Perimeter
114770884
Area
823272238383841
Diagonal
40577635.179587
Surface area
4939633430303046
Volume
2.3621920642993E+22
Space diagonal
49697250.579398
Perimeter
86078163
Area
3.5648733633544E+14
Altitude
24848625.289699
Surface area
3.5648733633544E+14
Volume
2.7838700452185E+21
Height
13525878.393196