128712712 is an even 9-digits composite number following 128712711
and preceding 128712713 . In scientific notation, it is written as 1.28712712 × 10^8.
The sum of its digits is 31. It has a total of 5 prime factors and 16 positive divisors.
There are 60570624 positive integers (up to 128712712) that are relatively prime to 128712712.
128712712 has 16 divisors, whose sum is 255532860
The reverse of 128712712 is 217217821
Previous prime number is 17
Is Prime? no
Number parity even
Number length 9
Sum of Digits 31
Digital Root 4
Name
one hundred twenty-eight million seven hundred twelve thousand seven hundred twelve
Scientific notation
1.28712712 × 10^8
Engineering notation
1.28712712 × 10^6
Prime Factorization
2 × 2 × 2 × 17 × 946417
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
32178178
Product of the distinct prime numbers
The prime factorization of 128712712 is 2 × 2 × 2 × 17 × 946417.
Since it has a total of 5 prime factors.
5 , 6 , 39 , 75 , 443 , 462 , 5811 , 856 , 8557 , 77178 , 280710 , 160950 , 7369181 , 45542 , 75023536 , 47361443 , 644377111 , 27202737 , 6856095026 , 6067073888
n×2
257425424
n×3
386138136
n×4
514850848
n×5
643563560
n÷2
64356356
n÷3
42904237.333333
n÷3
32178178
n÷5
25742542.4
n2
16566962230394944
n3
2.1323786382757E+24
n4
2.7446423754333E+32
n5
3.5327036361215E+40
2 √n
11345.162493327
3 √n
504.90206511807
4 √n
106.51367279991
5 √n
41.872056201377
1 , 2 , 4 , 8 , 17 , 34 , 68 , 136 , 946417 , 1892834 , 3785668 , 7571336 , 16089089 , 32178178 , 64356356 , 128712712
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-128712711
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 128712712 can be divided by 16 positive divisors.
The sum of these divisors (counting 128712712) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111101011000000000000001000
3
Ternary
22222012021122111
4
Quaternary
13223000000020
5
Quinary
230422301322
6
Senary
20434432104
8
Octal
753000010
10
Decimal
128712712
12
Duodecimal
37132634
16
Hexadecimal
7ac0008
20
Vigesimal
20491fc
36
Base36
24mrd4
md5
5866bac697ec7c4e389be4d87c9360b3
sha1
6a7a1585ae6210b7ee58cb3521365b2f16edbcf9
sha256
0875186a653b5d40c950e47c0f69756f11f3912e80b0f860cd19629ab01b5d8f
sha512
ac4f6adc4c20690f1f954f8bbce3259f86b3c7d2f2fbf1e41664f6da1e7da7411c56ca55cffe9e2c47cfe3cb51161bf06c8587cfa084a465f502a809fdc8c3f6
ripemd-160
750fe390e4fe6075f50100f2cb735495c85e6bd7
Diameter
257425424
Circumference
808725820.88564
Area
5.2046646835308E+16
Volume
8.932086752905E+24
Surface area
2.0818658734123E+17
Circumference
808725820.88564
Perimeter
514850848
Area
16566962230394944
Diagonal
182027262.96022
Surface area
99401773382369664
Volume
2.1323786382757E+24
Space diagonal
222936956.76398
Perimeter
386138136
Area
7.1737050775297E+15
Altitude
111468478.38199
Surface area
7.1737050775297E+15
Volume
2.5130323253035E+23
Height
60675754.320074