1280649142 is an even 10-digits composite number following 1280649141
and preceding 1280649143 . In scientific notation, it is written as 1.280649142 × 10^9.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 640324570 positive integers (up to 1280649142) that are relatively prime to 1280649142.
1280649142 has 4 divisors, whose sum is 1920973716
The reverse of 1280649142 is 2419460821
Previous prime number is 2
Is Prime? no
Number parity even
Number length 10
Sum of Digits 37
Digital Root 1
Name
one billion two hundred eighty million six hundred forty-nine thousand one hundred forty-two
Scientific notation
1.280649142 × 10^9
Engineering notation
1.280649142 × 10^9
Prime Factorization
2 × 640324571
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1280649142
Product of the distinct prime numbers
The prime factorization of 1280649142 is 2 × 640324571.
Since it has a total of 2 prime factors.
6 , 3 , 50 , 2 , 30 , 432 , 2476 , 7548 , 96977 , 49701 , 132294 , 725622 , 9435714 , 207732 , 18369076 , 55785443 , 216351655 , 764083629 , 1089944252 , 8579001148
n×2
2561298284
n×3
3841947426
n×4
5122596568
n×5
6403245710
n÷2
640324571
n÷3
426883047.33333
n÷3
320162285.5
n÷5
256129828.4
n2
1640062224905336164
n3
2.1003442811516E+27
n4
2.6898041015614E+36
n5
3.4446953148127E+45
2 √n
35786.158525329
3 √n
1085.9505617104
4 √n
189.17229851469
5 √n
66.295802581129
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
-1280649141
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 1280649142 can be divided by 4 positive divisors.
The sum of these divisors (counting 1280649142) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100010101010010011110110110
3
Ternary
10022020202201100201
4
Quaternary
1030111102132312
5
Quinary
10110321233032
6
Senary
331024431114
8
Octal
11425223666
10
Decimal
1280649142
12
Duodecimal
2b8a7849a
16
Hexadecimal
4c5527b6
20
Vigesimal
100412h2
36
Base36
l6gr7a
md5
850ad94cd0f08c0f14b268c6289ba37d
sha1
04a076e9a69332392cf1d74239c8a56ec1fa806d
sha256
1bdcc2e36391f9ca09f82c7408e6adb1cf2d000ff22c6fb5d34731efbc450c68
sha512
2a95be920404d1c77e7cb6b7dce057584f9f235f229ea8ec150796fc7e81da5ee761b050eb5c559ba81064b5948f4aa5de0780958979148009f21ca084cfe0e4
ripemd-160
df3b3c2792c956fc3f5da7ca20914a405c2bc942
Diameter
2561298284
Circumference
8046555872.6665
Area
5.1524074371927E+18
Volume
8.7979015515671E+27
Surface area
2.0609629748771E+19
Circumference
8046555872.6665
Perimeter
5122596568
Area
1640062224905336164
Diagonal
1811111385.2579
Surface area
9.840373349432E+18
Volume
2.1003442811516E+27
Space diagonal
2218149380.6135
Perimeter
3841947426
Area
7.1016777527762E+17
Altitude
1109074690.3067
Surface area
7.1016777527762E+17
Volume
2.4752794733812E+26
Height
603703795.08596