128587672 is an even 9-digits composite number following 128587671
and preceding 128587673 . In scientific notation, it is written as 1.28587672 × 10^8.
The sum of its digits is 46. It has a total of 6 prime factors and 32 positive divisors.
There are 63060480 positive integers (up to 128587672) that are relatively prime to 128587672.
128587672 has 32 divisors, whose sum is 245774880
The reverse of 128587672 is 276785821
Previous prime number is 113
Is Prime? no
Number parity even
Number length 9
Sum of Digits 46
Digital Root 1
Name
one hundred twenty-eight million five hundred eighty-seven thousand six hundred seventy-two
Scientific notation
1.28587672 × 10^8
Engineering notation
1.28587672 × 10^6
Prime Factorization
2 × 2 × 2 × 1381 × 113 × 103
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
32146918
Product of the distinct prime numbers
The prime factorization of 128587672 is 2 × 2 × 2 × 1381 × 113 × 103.
Since it has a total of 6 prime factors.
7 , 6 , 92 , 93 , 10 , 508 , 672 , 8993 , 11287 , 46794 , 386852 , 706657 , 9225840 , 490983 , 40680847 , 9230624 , 633071495 , 125393709 , 2300164372 , 7379817470
n×2
257175344
n×3
385763016
n×4
514350688
n×5
642938360
n÷2
64293836
n÷3
42862557.333333
n÷3
32146918
n÷5
25717534.4
n2
16534789390379584
n3
2.1261700747192E+24
n4
2.7339926018421E+32
n5
3.515577439361E+40
2 √n
11339.650435529
3 √n
504.73851377929
4 √n
106.48779477259
5 √n
41.863917583945
1 , 2 , 4 , 8 , 103 , 113 , 206 , 226 , 412 , 452 , 824 , 904 , 1381 , 2762 , 5524 , 11048 , 11639 , 23278 , 46556 , 93112 , 142243 , 156053 , 284486 , 312106 , 568972 , 624212 , 1137944 , 1248424 , 16073459 , 32146918 , 64293836 , 128587672
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
-128587671
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 128587672 can be divided by 32 positive divisors.
The sum of these divisors (counting 128587672) is 1, the average is 0.03125.
Base
System
Value
2
Binary
111101010100001011110011000
3
Ternary
22221221221010101
4
Quaternary
13222201132120
5
Quinary
230404301142
6
Senary
20432025144
8
Octal
752413630
10
Decimal
128587672
12
Duodecimal
370921b4
16
Hexadecimal
7aa1798
20
Vigesimal
203d93c
36
Base36
24k2vs
md5
0c15abdc9217364213368eb575f467b7
sha1
a60b843a6bff2c502f81a396205bbd79d1190fdd
sha256
e5ffddad662e29ad6470605a5715958edddae68f96ad96172cb522c39d8a2f10
sha512
3922f0105cfb84893e38a088569c48193ffe93370b11e96bb688f95f2ddf6a2f7bcb238de0d6dde005f61f82c22f7908610edb3c290727e87e73f615ca1b1a33
ripemd-160
a26e7599d8c318707aea467195f387295848452d
Diameter
257175344
Circumference
807940171.39483
Area
5.1945572877471E+16
Volume
8.9060803826938E+24
Surface area
2.0778229150988E+17
Circumference
807940171.39483
Perimeter
514350688
Area
16534789390379584
Diagonal
181850429.69638
Surface area
99208736342277504
Volume
2.1261700747192E+24
Space diagonal
222720381.131
Perimeter
385763016
Area
7.1597738291471E+15
Altitude
111360190.5655
Surface area
7.1597738291471E+15
Volume
2.5057154629831E+23
Height
60616809.898794