1986987 is an odd 7-digits composite number following 1986986
and preceding 1986988 . In scientific notation, it is written as 1.986987 × 10^6.
The sum of its digits is 48. It has a total of 4 prime factors and 16 positive divisors.
There are 1270080 positive integers (up to 1986987) that are relatively prime to 1986987.
1986987 has 16 divisors, whose sum is 2761088
The reverse of 1986987 is 7896891
Previous prime number is 73
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 48
Digital Root 3
Name
one million nine hundred eighty-six thousand nine hundred eighty-seven
Scientific notation
1.986987 × 10^6
Engineering notation
1.986987 × 10^6
Prime Factorization
3 × 43 × 73 × 211
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1986987
Product of the distinct prime numbers
The prime factorization of 1986987 is 3 × 43 × 73 × 211.
Since it has a total of 4 prime factors.
5 , 9 , 7 , 96 , 521 , 126 , 5717 , 980 , 43379 , 78726 , 987783 , 559235 , 1613136 , 1840392 , 20836119 , 18443419 , 829314402 , 416110664 , 4788494626 , 913692365
n×2
3973974
n×3
5960961
n×4
7947948
n×5
9934935
n÷2
993493.5
n÷3
662329
n÷3
496746.75
n÷5
397397.4
n2
3948117338169
n3
7844857825416406803
n4
1.5587630515951E+25
n5
3.0972419195997E+31
2 √n
1409.6052638948
3 √n
125.71825431441
4 √n
37.544710198573
5 √n
18.181889128276
1 , 3 , 43 , 73 , 129 , 211 , 219 , 633 , 3139 , 9073 , 9417 , 15403 , 27219 , 46209 , 662329 , 1986987
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
-1986986
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 1986987 can be divided by 16 positive divisors.
The sum of these divisors (counting 1986987) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111100101000110101011
3
Ternary
10201221122010
4
Quaternary
13211012223
5
Quinary
1002040422
6
Senary
110331003
8
Octal
7450653
10
Decimal
1986987
12
Duodecimal
7b9a63
16
Hexadecimal
1e51ab
20
Vigesimal
c8797
36
Base36
16l63
md5
5dd089e52570b6ba11f5a4d3c29b13b7
sha1
088dd749bcff795b6e3b0ec2a26e836850e2e12c
sha256
ec2ab365bc726755905c0664e28398ce6d001467d8bfd010e84ed862d37b4629
sha512
2f45cbf0b5d556e5a68dd6c6d39b3eb7290f5b1ca9c77a4d2a87efe01844e7cd9f7d4511d119706d0181813f72f55a74144983b1960cc8e421d35a22516788dd
ripemd-160
42dc0c09a2360539804543affad54852430ba69d
Diameter
3973974
Circumference
12484607.523957
Area
12403376425102
Volume
3.2860463617046E+19
Surface area
49613505700409
Circumference
12484607.523957
Perimeter
7947948
Area
3948117338169
Diagonal
2810023.963659
Surface area
23688704029014
Volume
7844857825416406803
Space diagonal
3441562.4379789
Perimeter
5960961
Area
1709584955988.1
Altitude
1720781.2189894
Surface area
1709584955988.1
Volume
9.2452536096605E+17
Height
936674.65455301