28690745 is an odd 8-digits composite number following 28690744
and preceding 28690746 . In scientific notation, it is written as 2.8690745 × 10^7.
The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors.
There are 22629040 positive integers (up to 28690745) that are relatively prime to 28690745.
28690745 has 8 divisors, whose sum is 34914240
The reverse of 28690745 is 54709682
Previous prime number is 71
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
twenty-eight million six hundred ninety thousand seven hundred forty-five
Scientific notation
2.8690745 × 10^7
Engineering notation
2.8690745 × 10^6
Prime Factorization
5 × 71 × 80819
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28690745
Product of the distinct prime numbers
The prime factorization of 28690745 is 5 × 71 × 80819.
Since it has a total of 3 prime factors.
9 , 4 , 16 , 34 , 369 , 922 , 3540 , 7585 , 61387 , 25719 , 543031 , 289665 , 6662730 , 5407735 , 75190758 , 7646516 , 671028320 , 157712963 , 4279749843 , 8340489580
n×2
57381490
n×3
86072235
n×4
114762980
n×5
143453725
n÷2
14345372.5
n÷3
9563581.6666667
n÷3
7172686.25
n÷5
5738149
n2
823158848655025
n3
2.3617040621255E+22
n4
6.7759049011907E+29
n5
1.9440575966431E+37
2 √n
5356.3742400994
3 √n
306.13567466684
4 √n
73.18725462879
5 √n
31.013327485118
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28690744
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28690745 can be divided by 8 positive divisors.
The sum of these divisors (counting 28690745) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101101011100100100111001
3
Ternary
1222222122022012
4
Quaternary
1231130210321
5
Quinary
24321100440
6
Senary
2502535305
8
Octal
155344471
10
Decimal
28690745
12
Duodecimal
9737535
16
Hexadecimal
1b5c939
20
Vigesimal
8j66h5
36
Base36
h2xx5
md5
7603bf428ecb06479e1170d8089635bf
sha1
5f6942e286ab9c8f8ee2bed068d8a19c658e2118
sha256
0372bcc33a5d84440d42e64a8c60866bcbf81305b969436545578fd0405ed484
sha512
41a921f93941fd660407670882afa78ca4984553a5045f594dfa02452636becbbfa83cd103b9bb53698a84c72cc482db19053eea47cd933184a40984a83c253f
ripemd-160
bd5f2f8f7323e09bab540326477097e58fec31d2
Diameter
57381490
Circumference
180269267.43604
Area
2.5860297916721E+15
Volume
9.8926828420355E+22
Surface area
1.0344119166688E+16
Circumference
180269267.43604
Perimeter
114762980
Area
823158848655025
Diagonal
40574840.693588
Surface area
4938953091930150
Volume
2.3617040621255E+22
Space diagonal
49693828.047003
Perimeter
86072235
Area
3.564382371426E+14
Altitude
24846914.023501
Surface area
3.564382371426E+14
Volume
2.7832949291413E+21
Height
13524946.897863