1661421 is an odd 7-digits composite number following 1661420
and preceding 1661422 . In scientific notation, it is written as 1.661421 × 10^6.
The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors.
There are 1104192 positive integers (up to 1661421) that are relatively prime to 1661421.
1661421 has 8 divisors, whose sum is 2222080
The reverse of 1661421 is 1241661
Previous prime number is 433
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 21
Digital Root 3
Name
one million six hundred sixty-one thousand four hundred twenty-one
Scientific notation
1.661421 × 10^6
Engineering notation
1.661421 × 10^6
Prime Factorization
3 × 433 × 1279
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1661421
Product of the distinct prime numbers
The prime factorization of 1661421 is 3 × 433 × 1279.
Since it has a total of 3 prime factors.
7 , 8 , 5 , 87 , 859 , 274 , 4534 , 6514 , 70484 , 36094 , 255094 , 235606 , 5189624 , 9428808 , 94087915 , 40190080 , 107253218 , 995808794 , 8244441647 , 9332094392
n×2
3322842
n×3
4984263
n×4
6645684
n×5
8307105
n÷2
830710.5
n÷3
553807
n÷3
415355.25
n÷5
332284.2
n2
2760319739241
n3
4586053181489521461
n4
7.6193650628435E+24
n5
1.2658973122075E+31
2 √n
1288.9612096568
3 √n
118.43859090991
4 √n
35.902105922311
5 √n
17.542679908129
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1661420
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1661421 can be divided by 8 positive divisors.
The sum of these divisors (counting 1661421) is 1, the average is 0.125.
Base
System
Value
2
Binary
110010101100111101101
3
Ternary
10010102001010
4
Quaternary
12111213231
5
Quinary
411131141
6
Senary
55335433
8
Octal
6254755
10
Decimal
1661421
12
Duodecimal
681579
16
Hexadecimal
1959ed
20
Vigesimal
a7db1
36
Base36
zlyl
md5
bb0604d75fbcb6edf2a7f65d8dd59b4c
sha1
60d3c44f5b66128c72a80d3f290dd34c1f1c53de
sha256
a0f28722aa30ebbe2fe461c541821750fc2af8260582afc53297282b9b775515
sha512
7a64eb626689f116495bb5366d04d4b705453fab9a945f2ec7a525b6d3b6eabfd75adf8677a6af956dded02553404ed76ec4adab4477203deb6a9375cfa06d22
ripemd-160
f4966789468af48a9fc6dcb176ff0c9303af5f49
Diameter
3322842
Circumference
10439016.01624
Area
8671800214358.4
Volume
1.9210014645253E+19
Surface area
34687200857434
Circumference
10439016.01624
Perimeter
6645684
Area
2760319739241
Diagonal
2349604.1110115
Surface area
16561918435446
Volume
4586053181489521461
Space diagonal
2877665.5847619
Perimeter
4984263
Area
1195253508375.2
Altitude
1438832.7923809
Surface area
1195253508375.2
Volume
5.4047155058556E+17
Height
783201.37033716