20657949 is an odd 8-digits composite number following 20657948
and preceding 20657950 . In scientific notation, it is written as 2.0657949 × 10^7.
The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors.
There are 12712560 positive integers (up to 20657949) that are relatively prime to 20657949.
20657949 has 4 divisors, whose sum is 21187680
The reverse of 20657949 is 94975602
Previous prime number is 39
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
twenty million six hundred fifty-seven thousand nine hundred forty-nine
Scientific notation
2.0657949 × 10^7
Engineering notation
2.0657949 × 10^6
Prime Factorization
39 × 529691
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20657949
Product of the distinct prime numbers
The prime factorization of 20657949 is 39 × 529691.
Since it has a total of 2 prime factors.
5 , 10 , 92 , 13 , 333 , 515 , 4966 , 1632 , 58494 , 30877 , 363684 , 669789 , 9947141 , 1530419 , 70185695 , 90351033 , 777243131 , 700457227 , 9638610058 , 3470545559
n×2
41315898
n×3
61973847
n×4
82631796
n×5
103289745
n÷2
10328974.5
n÷3
6885983
n÷3
5164487.25
n÷5
4131589.8
n2
426750856886601
n3
8.8157974372697E+21
n4
1.8211629385345E+29
n5
3.7621491104935E+36
2 √n
4545.1016490283
3 √n
274.38628539291
4 √n
67.417369045583
5 √n
29.041392751056
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
-20657948
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 20657949 can be divided by 4 positive divisors.
The sum of these divisors (counting 20657949) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110110011011100011101
3
Ternary
1102212112101020
4
Quaternary
1032303130131
5
Quinary
20242023244
6
Senary
2014434353
8
Octal
116633435
10
Decimal
20657949
12
Duodecimal
6b029b9
16
Hexadecimal
13b371d
20
Vigesimal
6924h9
36
Base36
carrx
md5
371225844e17c3e9febf9249b1706a1e
sha1
5ceed13968e70046c89dadb6359c8d455b39fdb0
sha256
ee11d30705f41ff7cbf2de8daeeaf178e1432fc589075c2b0d864753ba6f7639
sha512
8293a0d9b0b84812610be462afa9fc4b0109aed11c7c02ce09b12d520face5ea1e4f7e5009f0a097960ca6a4c4d4ca5b3a9ad83a0f9df3cc2c75322dde111fc2
ripemd-160
31c65cb6169aa8728b577c36a55793ba3ea3b33f
Diameter
41315898
Circumference
129797721.63327
Area
1.3406773569081E+15
Volume
3.6927525952616E+22
Surface area
5.3627094276324E+15
Circumference
129797721.63327
Perimeter
82631796
Area
426750856886601
Diagonal
29214751.646612
Surface area
2560505141319606
Volume
8.8157974372697E+21
Space diagonal
35780617.248167
Perimeter
61973847
Area
1.8478854157529E+14
Altitude
17890308.624083
Surface area
1.8478854157529E+14
Volume
1.0389516915767E+21
Height
9738250.5488706