128202387 is an odd 9-digits composite number following 128202386
and preceding 128202388 . In scientific notation, it is written as 1.28202387 × 10^8.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 85468256 positive integers (up to 128202387) that are relatively prime to 128202387.
128202387 has 4 divisors, whose sum is 170936520
The reverse of 128202387 is 783202821
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 33
Digital Root 6
Name
one hundred twenty-eight million two hundred two thousand three hundred eighty-seven
Scientific notation
1.28202387 × 10^8
Engineering notation
1.28202387 × 10^6
Prime Factorization
3 × 42734129
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
128202387
Product of the distinct prime numbers
The prime factorization of 128202387 is 3 × 42734129.
Since it has a total of 2 prime factors.
7 , 10 , 53 , 99 , 140 , 765 , 7678 , 9627 , 66130 , 22312 , 88510 , 134886 , 9079102 , 6469538 , 69932596 , 82967795 , 38361357 , 188017964 , 1147216088 , 4218589071
n×2
256404774
n×3
384607161
n×4
512809548
n×5
641011935
n÷2
64101193.5
n÷3
42734129
n÷3
32050596.75
n÷5
25640477.4
n2
16435852032497769
n3
2.107115462945E+24
n4
2.7013723203416E+32
n5
3.4632237964352E+40
2 √n
11322.649292458
3 √n
504.23389638112
4 √n
106.40793810829
5 √n
41.838800237118
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
-128202386
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 128202387 can be divided by 4 positive divisors.
The sum of these divisors (counting 128202387) is 1, the average is 0.25.
Base
System
Value
2
Binary
111101001000011011010010011
3
Ternary
22221020100121120
4
Quaternary
13221003122103
5
Quinary
230304434022
6
Senary
20415453323
8
Octal
751033223
10
Decimal
128202387
12
Duodecimal
36b27243
16
Hexadecimal
7a43693
20
Vigesimal
20155j7
36
Base36
24btlf
md5
4838c74358ae8be825a78bda059b0c99
sha1
9ca3bfe11aa558268ab2f350ecffa372a867914b
sha256
394bb63c2ad9c35af6c284eed5d14d9f4ea23927089a1d913cde06cecfd32271
sha512
781a80cf0332c8c1fbf87382335fc5176c7ec85dacbe0b24f64ff2165981d7e1de623764a306a4a0d099141c7489f3c2cb39f598c8c2fe49a5af4ee1cb43116a
ripemd-160
ef48025670bdda68fbff26d9ffb620ad3db1559b
Diameter
256404774
Circumference
805519354.34375
Area
5.1634752000784E+16
Volume
8.826264611538E+24
Surface area
2.0653900800314E+17
Circumference
805519354.34375
Perimeter
512809548
Area
16435852032497769
Diagonal
181305554.424
Surface area
98615112194986614
Volume
2.107115462945E+24
Space diagonal
222053047.93561
Perimeter
384607161
Area
7.1169326964926E+15
Altitude
111026523.9678
Surface area
7.1169326964926E+15
Volume
2.4832593876524E+23
Height
60435184.808001