20668849 is an odd 8-digits composite number following 20668848
and preceding 20668850 . In scientific notation, it is written as 2.0668849 × 10^7.
The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors.
There are 20407140 positive integers (up to 20668849) that are relatively prime to 20668849.
20668849 has 4 divisors, whose sum is 20930560
The reverse of 20668849 is 94886602
Previous prime number is 79
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
twenty million six hundred sixty-eight thousand eight hundred forty-nine
Scientific notation
2.0668849 × 10^7
Engineering notation
2.0668849 × 10^6
Prime Factorization
79 × 261631
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20668849
Product of the distinct prime numbers
The prime factorization of 20668849 is 79 × 261631.
Since it has a total of 2 prime factors.
7 , 9 , 35 , 30 , 908 , 977 , 6454 , 3990 , 79992 , 95617 , 769741 , 644464 , 6845026 , 7901873 , 73430951 , 29157379 , 286297295 , 349366606 , 8087744505 , 2248211548
n×2
41337698
n×3
62006547
n×4
82675396
n×5
103344245
n÷2
10334424.5
n÷3
6889616.3333333
n÷3
5167212.25
n÷5
4133769.8
n2
427201318984801
n3
8.8297595546977E+21
n4
1.8250096694235E+29
n5
3.7720849280855E+36
2 √n
4546.3005839913
3 √n
274.43453614358
4 √n
67.426260344107
5 √n
29.044456795719
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
-20668848
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 20668849 can be divided by 4 positive divisors.
The sum of these divisors (counting 20668849) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110110110000110110001
3
Ternary
1102220002022221
4
Quaternary
1032312012301
5
Quinary
20242400344
6
Senary
2015001041
8
Octal
116660661
10
Decimal
20668849
12
Duodecimal
6b09181
16
Hexadecimal
13b61b1
20
Vigesimal
693c29
36
Base36
cb06p
md5
3e3c7a70d135f9af0c02beb09199446a
sha1
9aab0ecd6d4f5729f51a186622402ffe9850f225
sha256
afb1e47386ef9f5f02621d0d2a2ef67ead9e19d1c380e814d65c52ecf809020c
sha512
b7f2131b58234d1390fb31dba71d276a40d5ca3c5e1b80ae2495762ace88a9efdfcbd40da80de29f9f96f6acf8da6a4b653da635bfd5e48c26209d6bba2113c7
ripemd-160
b0e4d5cea1cc17876f3fc33b7265bd393fe061ef
Diameter
41337698
Circumference
129866208.35311
Area
1.3420925253265E+15
Volume
3.6986010333337E+22
Surface area
5.3683701013061E+15
Circumference
129866208.35311
Perimeter
82675396
Area
427201318984801
Diagonal
29230166.574442
Surface area
2563207913908806
Volume
8.8297595546977E+21
Space diagonal
35799496.601969
Perimeter
62006547
Area
1.8498359738553E+14
Altitude
17899748.300985
Surface area
1.8498359738553E+14
Volume
1.0405971428956E+21
Height
9743388.8581472