2005987 is an odd 7-digits composite number following 2005986
and preceding 2005988 . In scientific notation, it is written as 2.005987 × 10^6.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 1992376 positive integers (up to 2005987) that are relatively prime to 2005987.
2005987 has 4 divisors, whose sum is 2019600
The reverse of 2005987 is 7895002
Previous prime number is 149
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 31
Digital Root 4
Name
two million five thousand nine hundred eighty-seven
Scientific notation
2.005987 × 10^6
Engineering notation
2.005987 × 10^6
Prime Factorization
149 × 13463
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
2005987
Product of the distinct prime numbers
The prime factorization of 2005987 is 149 × 13463.
Since it has a total of 2 prime factors.
10 , 1 , 69 , 44 , 198 , 994 , 7591 , 3316 , 43588 , 28889 , 248179 , 783528 , 8484309 , 1263692 , 45368934 , 51481619 , 940255428 , 463581248 , 6635544429 , 283646243
n×2
4011974
n×3
6017961
n×4
8023948
n×5
10029935
n÷2
1002993.5
n÷3
668662.33333333
n÷3
501496.75
n÷5
401197.4
n2
4023983844169
n3
8072059279613039803
n4
1.6192445978133E+25
n5
3.2481836130337E+31
2 √n
1416.3287047857
3 √n
126.11769887306
4 √n
37.634142806576
5 √n
18.216528720215
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
-2005986
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 2005987 can be divided by 4 positive divisors.
The sum of these divisors (counting 2005987) is 1, the average is 0.25.
Base
System
Value
2
Binary
111101001101111100011
3
Ternary
10202220200211
4
Quaternary
13221233203
5
Quinary
1003142422
6
Senary
110554551
8
Octal
7515743
10
Decimal
2005987
12
Duodecimal
808a57
16
Hexadecimal
1e9be3
20
Vigesimal
caej7
36
Base36
16ztv
md5
cb3703ff3cad3fc01f2ea3816d9b3076
sha1
1c13367a5e49153757a34c9405a1407a363db91c
sha256
7327d65e09dc617bf51d18966c13cf357f93bb748dac7d8702fd090aad89aeb6
sha512
a3a6fddcab3996b70626c05dc8da7b0e6c8a4e4536326c72d2229ab2356a91d565a1eb8d7b2b67eb8a441ea874c545e3d3aaf73ddc2cdc50a271d1488c0dec70
ripemd-160
bf6f9d957e91d59b6cf3e2e02424877a3f63586d
Diameter
4011974
Circumference
12603988.044793
Area
12641718083005
Volume
3.3812162842898E+19
Surface area
50566872332021
Circumference
12603988.044793
Perimeter
8023948
Area
4023983844169
Diagonal
2836894.0213441
Surface area
24143903065014
Volume
8072059279613039803
Space diagonal
3474471.4033227
Perimeter
6017961
Area
1742436116734.3
Altitude
1737235.7016613
Surface area
1742436116734.3
Volume
9.513013091257E+17
Height
945631.34044804