128311897 is an odd 9-digits composite number following 128311896
and preceding 128311898 . In scientific notation, it is written as 1.28311897 × 10^8.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 109981620 positive integers (up to 128311897) that are relatively prime to 128311897.
128311897 has 4 divisors, whose sum is 146642176
The reverse of 128311897 is 798113821
Previous prime number is 7
Is Prime? no Number parity odd Number length 9 Sum of Digits 40 Digital Root 4
Name
one hundred twenty-eight million three hundred eleven thousand eight hundred ninety-seven
Scientific notation
1.28311897 × 10^8
Engineering notation
1.28311897 × 10^6
Prime Factorization
7 × 18330271
Composite number
ω Distinct Factors
2 Total number of distinct prime factors
Ω Total Factors
2 Total number of prime factors
rad Radical
128311897 Product of the distinct prime numbers
The prime factorization of 128311897 is 7 × 18330271.
Since it has a total of 2 prime factors.
8 , 8 , 94 , 79 , 723 , 844 , 3617 , 5846 , 63872 , 72808 , 221257 , 827580 , 3413438 , 6196716 , 85752505 , 21426754 , 702079828 , 324923459 , 8269368174 , 3702916652
n×2
256623794
n×3
384935691
n×4
513247588
n×5
641559485
n÷2
64155948.5
n÷3
42770632.333333
n÷3
32077974.25
n÷5
25662379.4
n2
16463942911738609
n3
2.1125197471049E+24
n4
2.7106141620099E+32
n5
3.4780404516255E+40
2 √n11327.484142562
3 √n504.37742709122
4 √n106.4306541489
5 √n41.84594550552
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
-128311896 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 128311897 can be divided by 4 positive divisors.
The sum of these divisors (counting 128311897) is 1, the average is 0.25.
Base
System
Value
2
Binary
111101001011110001001011001
3
Ternary
22221102220211111
4
Quaternary
13221132021121
5
Quinary
230321440042
6
Senary
20422100321
8
Octal
751361131
10
Decimal
128311897
12
Duodecimal
36b7a6a1
16
Hexadecimal
7a5e259
20
Vigesimal
201ijeh
36
Base36
24e63d
md5
d4a5c14d035a968473251cbefd4a65fa
sha1
5418293d0a0c6a09cf10a3adf97d85441365c796
sha256
e85d8e199bc7a67be132e664065a969acc0c8fffd1c740077b460553312c3a94
sha512
9cc2b0e086bed282683c0c5044864830283b2815e028494191ba5bbe283004395cad8a2cb4400eeb6b1f424de39d82eff8e27c83c970e8c8e60280cbdb2d0f61
ripemd-160
7eabdaa389c810586228549a109361f032c1b68b
Diameter
256623794
Circumference
806207425.96674
Area
5.172300210064E+16
Volume
8.8489020240908E+24
Surface area
2.0689200840256E+17
Circumference
806207425.96674
Perimeter
513247588
Area
16463942911738609
Diagonal
181460424.95122
Surface area
98783657470431654
Volume
2.1125197471049E+24
Space diagonal
222242724.81954
Perimeter
384935691
Area
7.1290964040112E+15
Altitude
111121362.40977
Surface area
7.1290964040112E+15
Volume
2.4896283976139E+23
Height
60486808.317073