1288125821 is an odd 10-digits composite number following 1288125820
and preceding 1288125822 . In scientific notation, it is written as 1.288125821 × 10^9.
The sum of its digits is 38. It has a total of 4 prime factors and 16 positive divisors.
There are 1256976000 positive integers (up to 1288125821) that are relatively prime to 1288125821.
1288125821 has 16 divisors, whose sum is 1319804928
The reverse of 1288125821 is 1285218821
Previous prime number is 127
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 38
Digital Root 2
Name
one billion two hundred eighty-eight million one hundred twenty-five thousand eight hundred twenty-one
Scientific notation
1.288125821 × 10^9
Engineering notation
1.288125821 × 10^9
Prime Factorization
233 × 101 × 127 × 431
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1288125821
Product of the distinct prime numbers
The prime factorization of 1288125821 is 233 × 101 × 127 × 431.
Since it has a total of 4 prime factors.
1 , 1 , 59 , 4 , 931 , 159 , 7022 , 1198 , 65717 , 28174 , 91976 , 987621 , 835685 , 8074154 , 79583203 , 39193818 , 341374317 , 661414253 , 6889203534 , 9088213839
n×2
2576251642
n×3
3864377463
n×4
5152503284
n×5
6440629105
n÷2
644062910.5
n÷3
429375273.66667
n÷3
322031455.25
n÷5
257625164.2
n2
1659268130726924041
n3
2.1373461231518E+27
n4
2.753170729646E+36
n5
3.5464303064784E+45
2 √n
35890.469779595
3 √n
1088.059792582
4 √n
189.44780225591
5 √n
66.373031999259
1 , 101 , 127 , 233 , 431 , 12827 , 23533 , 29591 , 43531 , 54737 , 100423 , 2988691 , 5528437 , 10142723 , 12753721 , 1288125821
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
-1288125820
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 1288125821 can be divided by 16 positive divisors.
The sum of these divisors (counting 1288125821) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100110001110011110101111101
3
Ternary
10022202211120102202
4
Quaternary
1030301303311331
5
Quinary
10114230011241
6
Senary
331453001245
8
Octal
11461636575
10
Decimal
1288125821
12
Duodecimal
2bb483225
16
Hexadecimal
4cc73d7d
20
Vigesimal
102afeb1
36
Base36
lax08t
md5
916674b6df88bfe6f87fc669ab3489ed
sha1
1126d02d06da2a084897319a64758fcdecdd1e07
sha256
a96f6a89c010ede699f007b033fa2e46bc8892502cdd0f5b4d5a6829da34293f
sha512
f381c7e4b8436519e4b567361bc448ac90c5d48f36af577fdd7ac2a4f7b1669bbdb461bf2ee8ef571307a6edfd5bc229dda0e10ebc523132d0f18b558d07c176
ripemd-160
1d16d00117039f34789f344b0039b0ef2f3a37d8
Diameter
2576251642
Circumference
8093533232.3058
Area
5.2127445698274E+18
Volume
8.9528945048962E+27
Surface area
2.0850978279309E+19
Circumference
8093533232.3058
Perimeter
5152503284
Area
1659268130726924041
Diagonal
1821685006.1012
Surface area
9.9556087843615E+18
Volume
2.1373461231518E+27
Space diagonal
2231099368.5134
Perimeter
3864377463
Area
7.1848417644972E+17
Altitude
1115549684.2567
Surface area
7.1848417644972E+17
Volume
2.5188865623723E+26
Height
607228335.36706