28156723 is an odd 8-digits composite number following 28156722
and preceding 28156724 . In scientific notation, it is written as 2.8156723 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 24134292 positive integers (up to 28156723) that are relatively prime to 28156723.
28156723 has 4 divisors, whose sum is 28731400
The reverse of 28156723 is 32765182
Previous prime number is 49
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-eight million one hundred fifty-six thousand seven hundred twenty-three
Scientific notation
2.8156723 × 10^7
Engineering notation
2.8156723 × 10^6
Prime Factorization
49 × 574627
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28156723
Product of the distinct prime numbers
The prime factorization of 28156723 is 49 × 574627.
Since it has a total of 2 prime factors.
3 , 5 , 3 , 92 , 660 , 342 , 4441 , 3934 , 68881 , 5327 , 575910 , 737159 , 1986083 , 5989516 , 30653468 , 82933420 , 807390332 , 561549081 , 8784042762 , 65501616
n×2
56313446
n×3
84470169
n×4
112626892
n×5
140783615
n÷2
14078361.5
n÷3
9385574.3333333
n÷3
7039180.75
n÷5
5631344.6
n2
792801050098729
n3
2.2322679561739E+22
n4
6.2853350503765E+29
n5
1.7697443797564E+37
2 √n
5306.290889124
3 √n
304.22439500612
4 √n
72.844292083347
5 √n
30.897007740843
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
-28156722
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 28156723 can be divided by 4 positive divisors.
The sum of these divisors (counting 28156723) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101011011010001100110011
3
Ternary
1221222111202121
4
Quaternary
1223122030303
5
Quinary
24202003343
6
Senary
2443255111
8
Octal
153321463
10
Decimal
28156723
12
Duodecimal
951a497
16
Hexadecimal
1ada333
20
Vigesimal
8fjbg3
36
Base36
grhv7
md5
f4004487f368478b36e69da93453eb9c
sha1
1c2e67df977d9cac8d653ae314e814deb4c78a75
sha256
2ef3e2bf55203fe7b107a8bf1a56e944507171e39c642fa96a3a05ba2bafd3ef
sha512
2126d34ac79ee0f3a89b5e17973a8a3d74251b16caaf737fa08676099ced6b42dd9c4e02a22ccb73214544c029fa37ef572f3ca953f2af70b9b985b3d099ad68
ripemd-160
9c41170b453430419543841b8dc64c62c4077502
Diameter
56313446
Circumference
176913908.25193
Area
2.4906579547484E+15
Volume
9.3505021492798E+22
Surface area
9.9626318189938E+15
Circumference
176913908.25193
Perimeter
112626892
Area
792801050098729
Diagonal
39819619.538582
Surface area
4756806300592374
Volume
2.2322679561739E+22
Space diagonal
48768874.810643
Perimeter
84470169
Area
3.4329292476624E+14
Altitude
24384437.405322
Surface area
3.4329292476624E+14
Volume
2.6307530153933E+21
Height
13273206.512861