1661639 is an odd 7-digits composite number following 1661638
and preceding 1661640 . In scientific notation, it is written as 1.661639 × 10^6.
The sum of its digits is 32. It has a total of 3 prime factors and 6 positive divisors.
There are 1424220 positive integers (up to 1661639) that are relatively prime to 1661639.
1661639 has 6 divisors, whose sum is 1932984
The reverse of 1661639 is 9361661
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 32
Digital Root 5
Name
one million six hundred sixty-one thousand six hundred thirty-nine
Scientific notation
1.661639 × 10^6
Engineering notation
1.661639 × 10^6
Prime Factorization
7 × 7 × 33911
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
237377
Product of the distinct prime numbers
The prime factorization of 1661639 is 7 × 7 × 33911.
Since it has a total of 3 prime factors.
9 , 6 , 78 , 74 , 732 , 801 , 724 , 465 , 76875 , 5763 , 10513 , 734208 , 5296273 , 880397 , 11446375 , 49157050 , 681210992 , 907369009 , 8330348974 , 9605048427
n×2
3323278
n×3
4984917
n×4
6646556
n×5
8308195
n÷2
830819.5
n÷3
553879.66666667
n÷3
415409.75
n÷5
332327.8
n2
2761044166321
n3
4587858667481460119
n4
7.6233648883752E+24
n5
1.2667280409755E+31
2 √n
1289.0457711036
3 √n
118.44377091016
4 √n
35.903283569941
5 √n
17.543140249429
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1661638
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1661639 can be divided by 6 positive divisors.
The sum of these divisors (counting 1661639) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
110010101101011000111
3
Ternary
10010102100012
4
Quaternary
12111223013
5
Quinary
411133024
6
Senary
55340435
8
Octal
6255307
10
Decimal
1661639
12
Duodecimal
68171b
16
Hexadecimal
195ac7
20
Vigesimal
a7e1j
36
Base36
zm4n
md5
0ec30f433d714dc8edd8583045ecac34
sha1
821ae38774de8568005919cfaa2d4093fecc7459
sha256
5257322b8757659735c81409f5b724c074bc6378f08a28285245952d465d3a46
sha512
7b4a624deca370b2f79276154fd3ff7a9453dc9176f15b7b203c0e50e4d3d9f54af92fe116482a6a0355ca9c9bf103fc9adf5f9643d1ac50a86284fe3dc5ea7f
ripemd-160
0dd5e3afff165a6266f93de449a90a0f592b3d01
Diameter
3323278
Circumference
10440385.750637
Area
8674076069151
Volume
1.9217577447291E+19
Surface area
34696304276604
Circumference
10440385.750637
Perimeter
6646556
Area
2761044166321
Diagonal
2349912.4095681
Surface area
16566264997926
Volume
4587858667481460119
Space diagonal
2878043.1718379
Perimeter
4984917
Area
1195567194502.4
Altitude
1439021.585919
Surface area
1195567194502.4
Volume
5.4068432915027E+17
Height
783304.13652269