2487989 is an odd 7-digits composite number following 2487988
and preceding 2487990 . In scientific notation, it is written as 2.487989 × 10^6.
The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors.
There are 2132556 positive integers (up to 2487989) that are relatively prime to 2487989.
2487989 has 4 divisors, whose sum is 2843424
The reverse of 2487989 is 9897842
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 47
Digital Root 2
Name
two million four hundred eighty-seven thousand nine hundred eighty-nine
Scientific notation
2.487989 × 10^6
Engineering notation
2.487989 × 10^6
Prime Factorization
7 × 355427
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
2487989
Product of the distinct prime numbers
The prime factorization of 2487989 is 7 × 355427.
Since it has a total of 2 prime factors.
3 , 2 , 53 , 51 , 139 , 445 , 2085 , 6596 , 91199 , 29875 , 19165 , 235298 , 9075179 , 7852853 , 64448429 , 63362461 , 2979390 , 927636479 , 9328922567 , 1416693149
n×2
4975978
n×3
7463967
n×4
9951956
n×5
12439945
n÷2
1243994.5
n÷3
829329.66666667
n÷3
621997.25
n÷5
497597.8
n2
6190089264121
n3
1.5400873998151E+19
n4
3.8317205097786E+25
n5
9.5332784794036E+31
2 √n
1577.3360453626
3 √n
135.50317934834
4 √n
39.715690166011
5 √n
19.018212303011
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
-2487988
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 2487989 can be divided by 4 positive divisors.
The sum of these divisors (counting 2487989) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001011111011010110101
3
Ternary
11200101212202
4
Quaternary
21133122311
5
Quinary
1114103424
6
Senary
125154245
8
Octal
11373265
10
Decimal
2487989
12
Duodecimal
9bb985
16
Hexadecimal
25f6b5
20
Vigesimal
fajj9
36
Base36
1hbqt
md5
457c1fcdd1709ae5f22fb452edc51bff
sha1
684383e257c4a6b24ce4ccdeef10d5ee2d17ce59
sha256
df2fc9112c4869c97c858b567641afeee7274b0f718769024bd063998e8b3827
sha512
f66ba7ea5d09163c83b715b4c162b878c4732b2303b4ccbd9105f0b9bf57d386cef3b2413d6526c624af34db97415234997c46e1d96fee52ec4eb4fc693e7ef2
ripemd-160
c04ac58433c101ee086f8c9ffed3447ac132fd78
Diameter
4975978
Circumference
15632495.929224
Area
19446738957228
Volume
6.4511030148605E+19
Surface area
77786955828910
Circumference
15632495.929224
Perimeter
9951956
Area
6190089264121
Diagonal
3518547.7868351
Surface area
37140535584726
Volume
1.5400873998151E+19
Space diagonal
4309323.3566725
Perimeter
7463967
Area
2680387277211.1
Altitude
2154661.6783362
Surface area
2680387277211.1
Volume
1.8150104067154E+18
Height
1172849.2622784