1291255285 is an odd 10-digits composite number following 1291255284
and preceding 1291255286 . In scientific notation, it is written as 1.291255285 × 10^9.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 1033004224 positive integers (up to 1291255285) that are relatively prime to 1291255285.
1291255285 has 4 divisors, whose sum is 1549506348
The reverse of 1291255285 is 5825521921
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 40
Digital Root 4
Name
one billion two hundred ninety-one million two hundred fifty-five thousand two hundred eighty-five
Scientific notation
1.291255285 × 10^9
Engineering notation
1.291255285 × 10^9
Prime Factorization
5 × 258251057
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1291255285
Product of the distinct prime numbers
The prime factorization of 1291255285 is 5 × 258251057.
Since it has a total of 2 prime factors.
1 , 5 , 1 , 33 , 397 , 465 , 4440 , 7238 , 29726 , 18413 , 124662 , 126693 , 3068706 , 3301025 , 39095739 , 37276463 , 748597314 , 753579915 , 967994848 , 7178582982
n×2
2582510570
n×3
3873765855
n×4
5165021140
n×5
6456276425
n÷2
645627642.5
n÷3
430418428.33333
n÷3
322813821.25
n÷5
258251057
n2
1667340211040431225
n3
2.152961859399E+27
n4
2.7800233793523E+36
n5
3.5897198810123E+45
2 √n
35934.04075525
3 √n
1088.9402164573
4 √n
189.56276204796
5 √n
66.405250972353
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
-1291255284
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 1291255285 can be divided by 4 positive divisors.
The sum of these divisors (counting 1291255285) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100111101101111110111110101
3
Ternary
10022222201120020211
4
Quaternary
1030331233313311
5
Quinary
10121030132120
6
Senary
332044025421
8
Octal
11475576765
10
Decimal
1291255285
12
Duodecimal
300532271
16
Hexadecimal
4cf6fdf5
20
Vigesimal
103a6i45
36
Base36
lcs2yd
md5
b1a89a8c3f7cc690a421aba91e1cb174
sha1
b603021e7c96893a4da2b065dd2be9171c95008e
sha256
84f14f60d38fd5d7c78c5a1799bfcd9a6c8be4daaf16a8c52d8edcc2746289e3
sha512
36c6732d4d19d6836b74cd1ab6f4c9fcd7da00c653a9900f2a504527ba5baefb6cf55d0d1b771eb3ae3b686ed669d3a0d85a5f2a65b9173d31fde90b0caad886
ripemd-160
9f059dddd40194bba7e4b44c8ff7bdf3fe2276a2
Diameter
2582510570
Circumference
8113196234.53
Area
5.2381037580395E+18
Volume
9.0183055479291E+27
Surface area
2.0952415032158E+19
Circumference
8113196234.53
Perimeter
5165021140
Area
1667340211040431225
Diagonal
1826110736.5329
Surface area
1.0004041266243E+19
Volume
2.152961859399E+27
Space diagonal
2236519759.1618
Perimeter
3873765855
Area
7.2197948975616E+17
Altitude
1118259879.5809
Surface area
7.2197948975616E+17
Volume
2.5372898840284E+26
Height
608703578.84431