28165720 is an even 8-digits composite number following 28165719
and preceding 28165721 . In scientific notation, it is written as 2.8165720 × 10^7.
The sum of its digits is 31. It has a total of 6 prime factors and 32 positive divisors.
There are 10241920 positive integers (up to 28165720) that are relatively prime to 28165720.
28165720 has 32 divisors, whose sum is 69135120
The reverse of 28165720 is 02756182
Previous prime number is 11
Is Prime? no Number parity even Number length 8 Sum of Digits 31 Digital Root 4
Name
twenty-eight million one hundred sixty-five thousand seven hundred twenty
Scientific notation
2.8165720 × 10^7
Engineering notation
2.8165720 × 10^6
Prime Factorization
2 × 2 × 2 × 5 × 11 × 64013
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
6 Total number of prime factors
rad Radical
7041430 Product of the distinct prime numbers
The prime factorization of 28165720 is 2 × 2 × 2 × 5 × 11 × 64013.
Since it has a total of 6 prime factors.
3 , 4 , 68 , 24 , 108 , 985 , 276 , 1334 , 52883 , 71675 , 140343 , 941376 , 3549026 , 1091197 , 17484848 , 83722576 , 520229561 , 494617960 , 2993309359 , 4971241649
n×2
56331440
n×3
84497160
n×4
112662880
n×5
140828600
n÷2
14082860
n÷3
9388573.3333333
n÷3
7041430
n÷5
5633144
n2
793307783118400
n3
2.2344084893134E+22
n4
6.2933723875623E+29
n5
1.7725736452381E+37
2 √n5307.1385887312
3 √n304.25679479215
4 √n72.850110423603
5 √n30.89898201076
1 , 2 , 4 , 5 , 8 , 10 , 11 , 20 , 22 , 40 , 44 , 55 , 88 , 110 , 220 , 440 , 64013 , 128026 , 256052 , 320065 , 512104 , 640130 , 704143 , 1280260 , 1408286 , 2560520 , 2816572 , 3520715 , 5633144 , 7041430 , 14082860 , 28165720
32 divisors
τ Total Divisors
32 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-28165719 Sum of the proper positive divisors of n
A Arithmetic Mean
0.03125 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
32 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28165720 can be divided by 32 positive divisors.
The sum of these divisors (counting 28165720) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1101011011100011001011000
3
Ternary
1221222222002211
4
Quaternary
1223130121120
5
Quinary
24202300340
6
Senary
2443404504
8
Octal
153343130
10
Decimal
28165720
12
Duodecimal
9523734
16
Hexadecimal
1adc658
20
Vigesimal
8g0e60
36
Base36
grot4
md5
e53d4b4f6afb1634947148cac4813963
sha1
e260da0a7720e490dfce8808928765e7ee1d5785
sha256
8d887ff88b65e0be316cb3aa6268b8761e14eabcab81ff549054a11795e2cb01
sha512
c9c6e6642359f83f230621109bc54f50cca0ae99d2460af6161cb6c9c9bfb4a77983748368efd1e70815cfe1ccc4d1b74348daa63e45bb2a0184c784c942f542
ripemd-160
d9b9257abd289b0bb3b7251495a709b0dd562b74
Diameter
56331440
Circumference
176970438.07013
Area
2.4922499034804E+15
Volume
9.3594683935274E+22
Surface area
9.9689996139215E+15
Circumference
176970438.07013
Perimeter
112662880
Area
793307783118400
Diagonal
39832343.218003
Surface area
4759846698710400
Volume
2.2344084893134E+22
Space diagonal
48784458.071759
Perimeter
84497160
Area
3.4351234660023E+14
Altitude
24392229.035879
Surface area
3.4351234660023E+14
Volume
2.6332756578904E+21
Height
13277447.739334