1245121645 is an odd 10-digits composite number following 1245121644
and preceding 1245121646 . In scientific notation, it is written as 1.245121645 × 10^9.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 992393280 positive integers (up to 1245121645) that are relatively prime to 1245121645.
1245121645 has 8 divisors, whose sum is 1499702040
The reverse of 1245121645 is 5461215421
Previous prime number is 269
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 31
Digital Root 4
Name
one billion two hundred forty-five million one hundred twenty-one thousand six hundred forty-five
Scientific notation
1.245121645 × 10^9
Engineering notation
1.245121645 × 10^9
Prime Factorization
5 × 269 × 925741
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1245121645
Product of the distinct prime numbers
The prime factorization of 1245121645 is 5 × 269 × 925741.
Since it has a total of 3 prime factors.
6 , 10 , 66 , 28 , 557 , 544 , 4376 , 8681 , 20551 , 33773 , 643552 , 981836 , 6697614 , 3545258 , 25168520 , 68931946 , 825887720 , 856808929 , 5386824133 , 6649387280
n×2
2490243290
n×3
3735364935
n×4
4980486580
n×5
6225608225
n÷2
622560822.5
n÷3
415040548.33333
n÷3
311280411.25
n÷5
249024329
n2
1550327910847506025
n3
1.9303468386439E+27
n4
2.4035166311528E+36
n5
2.9926705815658E+45
2 √n
35286.281257735
3 √n
1075.8141717502
4 √n
187.846429984
5 √n
65.92381873638
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1245121644
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1245121645 can be divided by 8 positive divisors.
The sum of these divisors (counting 1245121645) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001010001101110000110001101101
3
Ternary
10012202220201210111
4
Quaternary
1022031300301231
5
Quinary
10022222343040
6
Senary
323315140021
8
Octal
11215606155
10
Decimal
1245121645
12
Duodecimal
2a8ba4611
16
Hexadecimal
4a370c6d
20
Vigesimal
j920425
36
Base36
klba0d
md5
0798b790d8edf3641496e012e338217a
sha1
fcc0f56eb4bd70e77b22db35c67be60416efd481
sha256
250551464f9dbdb50d8b628e1989a309e1651f5e8cc51c6b73135a96a9720e85
sha512
4bf078ae53f9c85ab92ebfc3225aea97e1b10d9dbc561b1690362708b9ed6b53cba41c141e34599e1cbf81c89c8920c03368efba9539bb8b795bd93f485af0e0
ripemd-160
b8350398061db1054c5fa2dc3db19486cf6945bb
Diameter
2490243290
Circumference
7823330025.5153
Area
4.8704987753737E+18
Volume
8.0858179295518E+27
Surface area
1.9481995101495E+19
Circumference
7823330025.5153
Perimeter
4980486580
Area
1550327910847506025
Diagonal
1760867917.1633
Surface area
9.301967465085E+18
Volume
1.9303468386439E+27
Space diagonal
2156613950.7437
Perimeter
3735364935
Area
6.71311677495E+17
Altitude
1078306975.3719
Surface area
6.71311677495E+17
Volume
2.2749355660785E+26
Height
586955972.38777