646987138 is an even 9-digits composite number following 646987137
and preceding 646987139 . In scientific notation, it is written as 6.46987138 × 10^8.
The sum of its digits is 52. It has a total of 4 prime factors and 16 positive divisors.
There are 276174000 positive integers (up to 646987138) that are relatively prime to 646987138.
646987138 has 16 divisors, whose sum is 1113545664
The reverse of 646987138 is 831789646
Previous prime number is 251
Is Prime? no
Number parity even
Number length 9
Sum of Digits 52
Digital Root 7
Name
six hundred forty-six million nine hundred eighty-seven thousand one hundred thirty-eight
Scientific notation
6.46987138 × 10^8
Engineering notation
6.46987138 × 10^6
Prime Factorization
2 × 7 × 251 × 184117
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
646987138
Product of the distinct prime numbers
The prime factorization of 646987138 is 2 × 7 × 251 × 184117.
Since it has a total of 4 prime factors.
1 , 10 , 2 , 59 , 715 , 397 , 3533 , 5877 , 35411 , 1319 , 99053 , 969532 , 1512324 , 3228032 , 8899619 , 75612672 , 154658747 , 265025162 , 951063625 , 4209258182
n×2
1293974276
n×3
1940961414
n×4
2587948552
n×5
3234935690
n÷2
323493569
n÷3
215662379.33333
n÷3
161746784.5
n÷5
129397427.6
n2
418592356737431044
n3
2.7082387087423E+26
n4
1.75219561119E+35
n5
1.1336480237E+44
2 √n
25435.941853999
3 √n
864.89864294027
4 √n
159.48649426832
5 √n
57.833453849219
1 , 2 , 7 , 14 , 251 , 502 , 1757 , 3514 , 184117 , 368234 , 1288819 , 2577638 , 46213367 , 92426734 , 323493569 , 646987138
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
-646987137
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 646987138 can be divided by 16 positive divisors.
The sum of these divisors (counting 646987138) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110100100000011110110000010
3
Ternary
1200002102100111121
4
Quaternary
212210003312002
5
Quinary
2311112042023
6
Senary
144111102454
8
Octal
4644036602
10
Decimal
646987138
12
Duodecimal
160811a2a
16
Hexadecimal
26903d82
20
Vigesimal
a23d7gi
36
Base36
ap76gy
md5
34ff26ce3577a5bd4b1d067835050a6c
sha1
2e573ad33109817e783a210e7d296d596889e5fd
sha256
a923adec6fcf3d5e8c8924604cb11a079fbcd5d9080068fdf21daf3b96fc4db2
sha512
5143d7681fb069a67b4028e6518715a3c7b8bf0ca050231e1d5367ab2e6b6ce401067acc879e6398369a5ee3d0a322338644c4f3e1bd27736308aa27b8beeb60
ripemd-160
5ee24192799d1d6280cc02ac0d675b146e5a3719
Diameter
1293974276
Circumference
4065140079.4158
Area
1.3150466727752E+18
Volume
1.1344243775403E+27
Surface area
5.2601866911006E+18
Circumference
4065140079.4158
Perimeter
2587948552
Area
418592356737431044
Diagonal
914977985.24055
Surface area
2511554140424586264
Volume
2.7082387087423E+26
Space diagonal
1120614594.8596
Perimeter
1940961414
Area
1.8125580738231E+17
Altitude
560307297.42979
Surface area
1.8125580738231E+17
Volume
3.1916899267059E+25
Height
304992661.74685