82661987 is an odd 8-digits composite number following 82661986
and preceding 82661988 . In scientific notation, it is written as 8.2661987 × 10^7.
The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors.
There are 81428160 positive integers (up to 82661987) that are relatively prime to 82661987.
82661987 has 4 divisors, whose sum is 83895816
The reverse of 82661987 is 78916628
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
eighty-two million six hundred sixty-one thousand nine hundred eighty-seven
Scientific notation
8.2661987 × 10^7
Engineering notation
8.2661987 × 10^6
Prime Factorization
67 × 1233761
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
82661987
Product of the distinct prime numbers
The prime factorization of 82661987 is 67 × 1233761.
Since it has a total of 2 prime factors.
8 , 5 , 31 , 18 , 330 , 62 , 3609 , 8770 , 43508 , 88392 , 446842 , 866954 , 1141769 , 2120458 , 72320726 , 38812445 , 386377895 , 510679707 , 1771568102 , 4349133125
n×2
165323974
n×3
247985961
n×4
330647948
n×5
413309935
n÷2
41330993.5
n÷3
27553995.666667
n÷3
20665496.75
n÷5
16532397.4
n2
6833004094788169
n3
5.6482969565433E+23
n4
4.6689944959392E+31
n5
3.859483623264E+39
2 √n
9091.8637803258
3 √n
435.61411828781
4 √n
95.351265226665
5 √n
38.32314727017
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
-82661986
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 82661987 can be divided by 4 positive divisors.
The sum of these divisors (counting 82661987) is 1, the average is 0.25.
Base
System
Value
2
Binary
100111011010101001001100011
3
Ternary
12202112122221002
4
Quaternary
10323111021203
5
Quinary
132130140422
6
Senary
12111422215
8
Octal
473251143
10
Decimal
82661987
12
Duodecimal
2382496b
16
Hexadecimal
4ed5263
20
Vigesimal
15gcej7
36
Base36
1d7qeb
md5
560d64e49916ab279cad9300eba6cf65
sha1
31e690642d16ad29799e377cf0edc7df22f42619
sha256
cc74418445ef0e6127a0e39f5520c9ccc4e87a4bce5dec101ac8ea0e11154798
sha512
2751477b2aff63024989a79bccd8d6bb6f95263324c46ab4421c3bc8915ebd7c71450a458fbba31886adbe833db98d96cf1009f1410d4e3020d252bdd0cd100c
ripemd-160
505a94cf2919eb4a5033c329b185e4f436466a02
Diameter
165323974
Circumference
519380582.18067
Area
2.1466515466135E+16
Volume
2.3659530965293E+24
Surface area
8.5866061864542E+16
Circumference
519380582.18067
Perimeter
330647948
Area
6833004094788169
Diagonal
116901703.10811
Surface area
40998024568729014
Volume
5.6482969565433E+23
Space diagonal
143174761.3386
Perimeter
247985961
Area
2.9587775651248E+15
Altitude
71587380.669299
Surface area
2.9587775651248E+15
Volume
6.6565818002118E+22
Height
38967234.369369