28711909 is an odd 8-digits prime number following 28711908
and preceding 28711910 . In scientific notation, it is written as 2.8711909 × 10^7.
The sum of its digits is 37. It has a total of 1 prime factors and 2 positive divisors.
There are 28711908 positive integers (up to 28711909) that are relatively prime to 28711909.
28711909 has 2 divisors, whose sum is 28711910
The reverse of 28711909 is 90911782
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 eleven thousand nine hundred nine
Scientific notation
2.8711909 × 10^7
Engineering notation
2.8711909 × 10^6
Prime Factorization
28711909
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
28711909
Product of the distinct prime numbers
The prime factorization of 28711909 is 28711909.
Since it has a total of 1 prime factors.
2 , 5 , 64 , 33 , 292 , 420 , 2897 , 4535 , 78931 , 49158 , 825578 , 757138 , 8488053 , 6040908 , 8743715 , 54702165 , 457620862 , 626440740 , 2636846496 , 2490324262
n×2
57423818
n×3
86135727
n×4
114847636
n×5
143559545
n÷2
14355954.5
n÷3
9570636.3333333
n÷3
7177977.25
n÷5
5742381.8
n2
824373718424281
n3
2.366934318539E+22
n4
6.7959202762868E+29
n5
1.95123844544E+37
2 √n
5358.3494660203
3 √n
306.2109307928
4 √n
73.200747714899
5 √n
31.017901590661
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
28711910
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
14355955
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
5358.3495593326
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999303425
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28711909 can be divided by 2 positive divisors.
The sum of these divisors (counting 28711909) is 28711910, the average is 14355955.
Base
System
Value
2
Binary
1101101100001101111100101
3
Ternary
2000000201100001
4
Quaternary
1231201233211
5
Quinary
24322240114
6
Senary
2503221301
8
Octal
155415745
10
Decimal
28711909
12
Duodecimal
9747831
16
Hexadecimal
1b61be5
20
Vigesimal
8j8jf9
36
Base36
h3e91
md5
88762abd3819a296da3d9b9299a9e5f7
sha1
6bf87d04a483cd0a731847bb7bc68fc751ef3e9f
sha256
95066dd9881ae1155a65634d4fee7186699f376296bf07f4c664e4557e3cb61b
sha512
4db58768bbcb61d1bd89e532982c87d59a56bcb38e3d323fa0da15203d78ad2891eb3b65d648a76c4897965485b1c37d095a043f8ca3bbda29479ce62f8c7388
ripemd-160
cf5b00abfa5c25adbf98fe6c20713ee5a1d3fb9a
Diameter
57423818
Circumference
180402244.76988
Area
2.5898464176142E+15
Volume
9.9145912888687E+22
Surface area
1.0359385670457E+16
Circumference
180402244.76988
Perimeter
114847636
Area
824373718424281
Diagonal
40604771.109422
Surface area
4946242310545686
Volume
2.366934318539E+22
Space diagonal
49730485.170294
Perimeter
86135727
Area
3.5696429118383E+14
Altitude
24865242.585147
Surface area
3.5696429118383E+14
Volume
2.7894588454368E+21
Height
13534923.703141