1287975428 is an even 10-digits composite number following 1287975427
and preceding 1287975429 . In scientific notation, it is written as 1.287975428 × 10^9.
The sum of its digits is 53. It has a total of 4 prime factors and 12 positive divisors.
There are 633072552 positive integers (up to 1287975428) that are relatively prime to 1287975428.
1287975428 has 12 divisors, whose sum is 2292160080
The reverse of 1287975428 is 8245797821
Previous prime number is 59
Is Prime? no Number parity even Number length 10 Sum of Digits 53 Digital Root 8
Name
one billion two hundred eighty-seven million nine hundred seventy-five thousand four hundred twenty-eight
Scientific notation
1.287975428 × 10^9
Engineering notation
1.287975428 × 10^9
Prime Factorization
2 × 2 × 59 × 5457523
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
643987714 Product of the distinct prime numbers
The prime factorization of 1287975428 is 2 × 2 × 59 × 5457523.
Since it has a total of 4 prime factors.
3 , 1 , 55 , 40 , 139 , 904 , 6069 , 4118 , 26374 , 63203 , 125533 , 317497 , 7922662 , 913558 , 28807720 , 45513782 , 416991798 , 301438097 , 2201140261 , 7581602244
n×2
2575950856
n×3
3863926284
n×4
5151901712
n×5
6439877140
n÷2
643987714
n÷3
429325142.66667
n÷3
321993857
n÷5
257595085.6
n2
1658880703131783184
n3
2.1365975836171E+27
n4
2.751885187223E+36
n5
3.5443605018204E+45
2 √n35888.374552214
3 √n1088.01744606
4 √n189.44227234758
5 √n66.371482072156
1 , 2 , 4 , 59 , 118 , 236 , 5457523 , 10915046 , 21830092 , 321993857 , 643987714 , 1287975428
12 divisors
τ Total Divisors
12 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-1287975427 Sum of the proper positive divisors of n
A Arithmetic Mean
0.083333333333333 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
12 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1287975428 can be divided by 12 positive divisors.
The sum of these divisors (counting 1287975428) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001100110001001111001000000100
3
Ternary
10022202112221010122
4
Quaternary
1030301033020010
5
Quinary
10114210203203
6
Senary
331445441112
8
Octal
11461171004
10
Decimal
1287975428
12
Duodecimal
2bb410198
16
Hexadecimal
4cc4f204
20
Vigesimal
1029gib8
36
Base36
lats78
md5
0faf80dc34e77a8afad3c967d640b4fb
sha1
0aeffdc1e21dd6d21705814e9a117dc03418e289
sha256
28f36991fbfa4efa5453ddb61880e24078fea7bc42c9465a05eeca26b30bb1c3
sha512
02115bc5551f8d46e5863fcb6316ec0a1de042b523a917ac531bbba0655598641782a2850854091f538847e62739da9d64bde203ed205e7426419e741c602611
ripemd-160
e900e51f717cc2505dba9ef44eae84bb7ac26ea1
Diameter
2575950856
Circumference
8092588285.2179
Area
5.2115274301407E+18
Volume
8.9497590298256E+27
Surface area
2.0846109720563E+19
Circumference
8092588285.2179
Perimeter
5151901712
Area
1658880703131783184
Diagonal
1821472318.2809
Surface area
9.9532842187907E+18
Volume
2.1365975836171E+27
Space diagonal
2230838880.1963
Perimeter
3863926284
Area
7.1831641537996E+17
Altitude
1115419440.0981
Surface area
7.1831641537996E+17
Volume
2.5180044000707E+26
Height
607157439.42696