128250821 is an odd 9-digits prime number following 128250820
and preceding 128250822 . In scientific notation, it is written as 1.28250821 × 10^8.
The sum of its digits is 29. It has a total of 1 prime factors and 2 positive divisors.
There are 128250820 positive integers (up to 128250821) that are relatively prime to 128250821.
128250821 has 2 divisors, whose sum is 128250822
The reverse of 128250821 is 128052821
Previous prime number is 1
Is Prime? yes Number parity odd Number length 9 Sum of Digits 29 Digital Root 2
Name
one hundred twenty-eight million two hundred fifty thousand eight hundred twenty-one
Scientific notation
1.28250821 × 10^8
Engineering notation
1.28250821 × 10^6
Prime Factorization
128250821
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
128250821 Product of the distinct prime numbers
The prime factorization of 128250821 is 128250821.
Since it has a total of 1 prime factors.
4 , 7 , 84 , 19 , 763 , 108 , 7733 , 8731 , 17517 , 64824 , 836354 , 621117 , 5467522 , 9982339 , 37195080 , 5950779 , 855794155 , 762056781 , 8683343059 , 1456597615
n×2
256501642
n×3
384752463
n×4
513003284
n×5
641254105
n÷2
64125410.5
n÷3
42750273.666667
n÷3
32062705.25
n÷5
25650164.2
n2
16448273087174041
n3
2.1095045274623E+24
n4
2.7054568755025E+32
n5
3.469770654633E+40
2 √n11324.787900884
3 √n504.29738711182
4 √n106.41798673572
5 √n41.841961042998
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
128250822 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
64125411 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
11324.787945035 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999844056 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 128250821 can be divided by 2 positive divisors.
The sum of these divisors (counting 128250821) is 128250822, the average is 64125411.
Base
System
Value
2
Binary
111101001001111001111000101
3
Ternary
22221022211001102
4
Quaternary
13221033033011
5
Quinary
230313011241
6
Senary
20420505445
8
Octal
751171705
10
Decimal
128250821
12
Duodecimal
36b4b285
16
Hexadecimal
7a4f3c5
20
Vigesimal
201b711
36
Base36
24cuyt
md5
5c1cee2589e95640b5a19d44597a908b
sha1
7af8f758150bea1e53e7410a701993be630070dc
sha256
f5f75b929e8aa82eb0aac2f250d255d8d24618a245d9da6ec9afdef8a0463e40
sha512
d4ec2074a510de7730854fc6e8c91ecf8aec26331c53c3139726abf9dd8ffcc74c93ce7dd9a97bc55fc630f803dac447e065a5c2c4ed0c9eb0e6fd8614318006
ripemd-160
6cb76f1a255a7988db3346d3dd63aba2baa4d788
Diameter
256501642
Circumference
805823674.14092
Area
5.1673773894905E+16
Volume
8.8362719015865E+24
Surface area
2.0669509557962E+17
Circumference
805823674.14092
Perimeter
513003284
Area
16448273087174041
Diagonal
181374050.44368
Surface area
98689638523044246
Volume
2.1095045274623E+24
Space diagonal
222136938.08442
Perimeter
384752463
Area
7.1223111709383E+15
Altitude
111068469.04221
Surface area
7.1223111709383E+15
Volume
2.4860749271872E+23
Height
60458016.814561