1242657909 is an odd 10-digits composite number following 1242657908
and preceding 1242657910 . In scientific notation, it is written as 1.242657909 × 10^9.
The sum of its digits is 45. It has a total of 5 prime factors and 16 positive divisors.
There are 801714240 positive integers (up to 1242657909) that are relatively prime to 1242657909.
1242657909 has 16 divisors, whose sum is 1900362240
The reverse of 1242657909 is 9097562421
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 45
Digital Root 9
Name
one billion two hundred forty-two million six hundred fifty-seven thousand nine hundred nine
Scientific notation
1.242657909 × 10^9
Engineering notation
1.242657909 × 10^9
Prime Factorization
31 × 3 × 3 × 3 × 1484657
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
138073101
Product of the distinct prime numbers
The prime factorization of 1242657909 is 31 × 3 × 3 × 3 × 1484657.
Since it has a total of 5 prime factors.
10 , 6 , 84 , 7 , 925 , 536 , 9672 , 1079 , 73593 , 51690 , 858207 , 563680 , 6104773 , 863935 , 18401417 , 54962114 , 130742866 , 144897850 , 7765633015 , 1294431030
n×2
2485315818
n×3
3727973727
n×4
4970631636
n×5
6213289545
n÷2
621328954.5
n÷3
414219303
n÷3
310664477.25
n÷5
248531581.8
n2
1544198678800252281
n3
1.9189107012785E+27
n4
2.3845495596084E+36
n5
2.9631793696499E+45
2 √n
35251.353293172
3 √n
1075.1041280783
4 √n
187.75343750028
5 √n
65.897709224754
1 , 3 , 9 , 27 , 31 , 93 , 279 , 837 , 1484657 , 4453971 , 13361913 , 40085739 , 46024367 , 138073101 , 414219303 , 1242657909
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
-1242657908
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 1242657909 can be divided by 16 positive divisors.
The sum of these divisors (counting 1242657909) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001010000100010111010001110101
3
Ternary
10012121021120012000
4
Quaternary
1022010113101311
5
Quinary
10021110023114
6
Senary
323150245513
8
Octal
11204272165
10
Decimal
1242657909
12
Duodecimal
2a81b6899
16
Hexadecimal
4a117475
20
Vigesimal
j86c4f9
36
Base36
kjugz9
md5
9c2402ff0e68ae1426115e1c8757dda4
sha1
1b2dfcc5cf8ecab2f25309f5c2f3c425551f5a25
sha256
73b78e9ef9efe6ed1a6042bb419ea078c0e0e48048a185b7f22686d7643ec03d
sha512
98f3c65379a2d69b3a4fc398d52885d3d3402f8f581788a45c23c93afdf8524c1aa21cb00a63a52f231d9fd60af8e2cbed0e71c7d4f07d80ad413b117c67362b
ripemd-160
c7dc7d83a94cd623c4071c231697236d301fea52
Diameter
2485315818
Circumference
7807849915.6793
Area
4.8512432250019E+18
Volume
8.0379143493751E+27
Surface area
1.9404972900008E+19
Circumference
7807849915.6793
Perimeter
4970631636
Area
1544198678800252281
Diagonal
1757383668.298
Surface area
9.2651920728015E+18
Volume
1.9189107012785E+27
Space diagonal
2152346634.8153
Perimeter
3727973727
Area
6.6865764216569E+17
Altitude
1076173317.4077
Surface area
6.6865764216569E+17
Volume
2.2614579489424E+26
Height
585794556.09933