128016685 is an odd 9-digits composite number following 128016684
and preceding 128016686 . In scientific notation, it is written as 1.28016685 × 10^8.
The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors.
There are 101473344 positive integers (up to 128016685) that are relatively prime to 128016685.
128016685 has 8 divisors, whose sum is 155030040
The reverse of 128016685 is 586610821
Previous prime number is 109
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 37
Digital Root 1
Name
one hundred twenty-eight million sixteen thousand six hundred eighty-five
Scientific notation
1.28016685 × 10^8
Engineering notation
1.28016685 × 10^6
Prime Factorization
5 × 109 × 234893
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
128016685
Product of the distinct prime numbers
The prime factorization of 128016685 is 5 × 109 × 234893.
Since it has a total of 3 prime factors.
7 , 7 , 82 , 13 , 432 , 844 , 611 , 3758 , 36426 , 99465 , 616529 , 560342 , 6417647 , 4191631 , 24053270 , 31739786 , 431812357 , 651292815 , 9550130071 , 9065977811
n×2
256033370
n×3
384050055
n×4
512066740
n×5
640083425
n÷2
64008342.5
n÷3
42672228.333333
n÷3
32004171.25
n÷5
25603337
n2
16388271638389225
n3
2.0979722080261E+24
n4
2.6857544729363E+32
n5
3.4382138434923E+40
2 √n
11314.445854747
3 √n
503.99031669688
4 √n
106.36938401038
5 √n
41.826672452797
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
-128016684
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 128016685 can be divided by 8 positive divisors.
The sum of these divisors (counting 128016685) is 1, the average is 0.125.
Base
System
Value
2
Binary
111101000010110000100101101
3
Ternary
22220212220212201
4
Quaternary
13220112010231
5
Quinary
230233013220
6
Senary
20411501501
8
Octal
750260455
10
Decimal
128016685
12
Duodecimal
36a57891
16
Hexadecimal
7a1612d
20
Vigesimal
20021e5
36
Base36
247ub1
md5
3b9842e688100bd2d9260c2124d142ce
sha1
0ff2df272440ae0a554df9f93c2e12d210add45e
sha256
f5b3071b81556cd77704c53680b18458f9911f7a5a83643a38e4f837e03bdb41
sha512
2e744477034dfc40863f6cd681f90a13bbb45cfb2667ea741e4c164b599ae1bc5f023a1ba9323e238308586a8d0b8704733e9d26b84f610bbd0ae134de5e3ef3
ripemd-160
fcb943d2687746e1bec5ea6ecd98c1e2de9cad79
Diameter
256033370
Circumference
804352554.26584
Area
5.1485273784198E+16
Volume
8.7879654348938E+24
Surface area
2.0594109513679E+17
Circumference
804352554.26584
Perimeter
512066740
Area
16388271638389225
Diagonal
181042932.13704
Surface area
98329629830335350
Volume
2.0979722080261E+24
Space diagonal
221731402.63654
Perimeter
384050055
Area
7.0963297814825E+15
Altitude
110865701.31827
Surface area
7.0963297814825E+15
Volume
2.4724839583936E+23
Height
60347644.045681