28723930 is an even 8-digits composite number following 28723929
and preceding 28723931 . In scientific notation, it is written as 2.8723930 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 11489568 positive integers (up to 28723930) that are relatively prime to 28723930.
28723930 has 8 divisors, whose sum is 51703092
The reverse of 28723930 is 03932782
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-eight million seven hundred twenty-three thousand nine hundred thirty
Scientific notation
2.8723930 × 10^7
Engineering notation
2.8723930 × 10^6
Prime Factorization
2 × 5 × 2872393
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28723930
Product of the distinct prime numbers
The prime factorization of 28723930 is 2 × 5 × 2872393.
Since it has a total of 3 prime factors.
4 , 9 , 7 , 67 , 203 , 608 , 3325 , 1754 , 46641 , 73885 , 953777 , 102528 , 5409386 , 1350566 , 10317374 , 24263453 , 752934972 , 154605605 , 4161015445 , 9594322870
n×2
57447860
n×3
86171790
n×4
114895720
n×5
143619650
n÷2
14361965
n÷3
9574643.3333333
n÷3
7180982.5
n÷5
5744786
n2
825064154644900
n3
2.3699085023529E+22
n4
6.807308592799E+29
n5
1.9553265550796E+37
2 √n
5359.4710559905
3 √n
306.2536592649
4 √n
73.208408369466
5 √n
31.020498448756
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
-28723929
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 28723930 can be divided by 8 positive divisors.
The sum of these divisors (counting 28723930) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101101100100101011011010
3
Ternary
2000001022211021
4
Quaternary
1231210223122
5
Quinary
24323131210
6
Senary
2503353054
8
Octal
155445332
10
Decimal
28723930
12
Duodecimal
975278a
16
Hexadecimal
1b64ada
20
Vigesimal
8ja9ga
36
Base36
h3niy
md5
9fae94d3acb10d62a0f3b42c263f8ead
sha1
42f56bea20472f4421189b32bb0c45d6c4dd2fd8
sha256
de19c26995c76052e82b74ac76961e146b07e7a238292d72a9c048e08fd90813
sha512
3b8edbeadd3fd2892509afd21702acd4c1d6d8c86d23466562ed09893a37bc2b41f1a5e1d6b5972ad11d616b4a2477ab079e61a5c93b6535791a4b3fd34bbc78
ripemd-160
72c92294f2deb0f62b8a73879ff2db7bfb7efb14
Diameter
57447860
Circumference
180477774.94045
Area
2.5920154869727E+15
Volume
9.9270495208959E+22
Surface area
1.0368061947891E+16
Circumference
180477774.94045
Perimeter
114895720
Area
825064154644900
Diagonal
40621771.370655
Surface area
4950384927869400
Volume
2.3699085023529E+22
Space diagonal
49751306.153052
Perimeter
86171790
Area
3.5726325883721E+14
Altitude
24875653.076526
Surface area
3.5726325883721E+14
Volume
2.7929639546757E+21
Height
13540590.456885