16661681 is an odd 8-digits prime number following 16661680
and preceding 16661682 . In scientific notation, it is written as 1.6661681 × 10^7.
The sum of its digits is 35. It has a total of 1 prime factors and 2 positive divisors.
There are 16661680 positive integers (up to 16661681) that are relatively prime to 16661681.
16661681 has 2 divisors, whose sum is 16661682
The reverse of 16661681 is 18616661
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
sixteen million six hundred sixty-one thousand six hundred eighty-one
Scientific notation
1.6661681 × 10^7
Engineering notation
1.6661681 × 10^6
Prime Factorization
16661681
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
16661681
Product of the distinct prime numbers
The prime factorization of 16661681 is 16661681.
Since it has a total of 1 prime factors.
3 , 6 , 44 , 21 , 298 , 222 , 7245 , 3691 , 54852 , 30961 , 421741 , 936889 , 8596410 , 8206727 , 87999397 , 83653735 , 317351016 , 467365715 , 6213488351 , 1145701852
n×2
33323362
n×3
49985043
n×4
66646724
n×5
83308405
n÷2
8330840.5
n÷3
5553893.6666667
n÷3
4165420.25
n÷5
3332336.2
n2
277611613745761
n3
4.6254761501271E+21
n4
7.7068208086526E+28
n5
1.2840858983793E+36
2 √n
4081.8722419988
3 √n
255.41100450173
4 √n
63.889531552507
5 √n
27.819144033479
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
16661682
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
8330841
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4081.8723644916
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999998799641
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 16661681 can be divided by 2 positive divisors.
The sum of these divisors (counting 16661681) is 16661682, the average is 8330841.
Base
System
Value
2
Binary
111111100011110010110001
3
Ternary
1011100111112022
4
Quaternary
333203302301
5
Quinary
13231133211
6
Senary
1353041225
8
Octal
77436261
10
Decimal
16661681
12
Duodecimal
56b6215
16
Hexadecimal
fe3cb1
20
Vigesimal
542e41
36
Base36
9x48h
md5
41af09c05417c35646df04dd0b38922a
sha1
f98e8b98806befa1c259cec7e37764f15a433a2b
sha256
30f7526f5963d3ee1e1383aede571c309c2e1ea924dde8883511b9d589e285e9
sha512
3c3abf38f2a1163292f9623782e958b55765e936c18ad7ac2aa65da8720b3495635ad8fa0d2117fdc7bd2bf6ef4d0321f7e44f77eadac57bed067a931e2a6f8b
ripemd-160
83cb1c451129989c8fea6a04870239e5cf613c21
Diameter
33323362
Circumference
104688429.25211
Area
8.7214260629489E+14
Volume
1.9375149190125E+22
Surface area
3.4885704251796E+15
Circumference
104688429.25211
Perimeter
66646724
Area
277611613745761
Diagonal
23563175.242134
Surface area
1665669682474566
Volume
4.6254761501271E+21
Space diagonal
28858878.031505
Perimeter
49985043
Area
1.2020935494471E+14
Altitude
14429439.015753
Surface area
1.2020935494471E+14
Volume
5.4511759199525E+20
Height
7854391.747378