20105245 is an odd 8-digits composite number following 20105244
and preceding 20105246 . In scientific notation, it is written as 2.0105245 × 10^7.
The sum of its digits is 19. It has a total of 3 prime factors and 8 positive divisors.
There are 15649344 positive integers (up to 20105245) that are relatively prime to 20105245.
20105245 has 8 divisors, whose sum is 24778584
The reverse of 20105245 is 54250102
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty million one hundred five thousand two hundred forty-five
Scientific notation
2.0105245 × 10^7
Engineering notation
2.0105245 × 10^6
Prime Factorization
5 × 37 × 108677
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20105245
Product of the distinct prime numbers
The prime factorization of 20105245 is 5 × 37 × 108677.
Since it has a total of 3 prime factors.
5 , 4 , 31 , 17 , 535 , 122 , 1977 , 2462 , 30704 , 91281 , 557595 , 292644 , 5259950 , 4272091 , 59832898 , 48506787 , 19453618 , 850300106 , 3220240968 , 2845780667
n×2
40210490
n×3
60315735
n×4
80420980
n×5
100526225
n÷2
10052622.5
n÷3
6701748.3333333
n÷3
5026311.25
n÷5
4021049
n2
404220876510025
n3
8.1269597563488E+21
n4
1.6339451700653E+29
n5
3.285086796073E+36
2 √n
4483.8872644169
3 √n
271.91706038839
4 √n
66.961834386588
5 √n
28.884301789222
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
-20105244
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 20105245 can be divided by 8 positive divisors.
The sum of these divisors (counting 20105245) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100101100100000011101
3
Ternary
1101211110012201
4
Quaternary
1030230200131
5
Quinary
20121331440
6
Senary
1554531501
8
Octal
114544035
10
Decimal
20105245
12
Duodecimal
6896b91
16
Hexadecimal
132c81d
20
Vigesimal
65d325
36
Base36
byxb1
md5
173cd40d0c1e144b8f017c1af4436efb
sha1
1a46cf00a1d5b6fd9c5394ed9396393b7b110567
sha256
e66a1054480fab3007e2ae533c503f2edd51e45c20db00ec69e3a754ed51eb69
sha512
154a7b6d3c7ac52a2962d33d34e1af9f628c65d27ab468dbee8a27646ac652652ebee90906fd4ef85b7a7e1688de5844d00c144f51f98ed61fa2bdb32aad9bac
ripemd-160
8cd99ccad47cb7c0c9c8f5896c717642f9232955
Diameter
40210490
Circumference
126324979.98125
Area
1.2698973360715E+15
Volume
3.4042129422087E+22
Surface area
5.0795893442861E+15
Circumference
126324979.98125
Perimeter
80420980
Area
404220876510025
Diagonal
28433110.153834
Surface area
2425325259060150
Volume
8.1269597563488E+21
Space diagonal
34823305.83862
Perimeter
60315735
Area
1.7503277389885E+14
Altitude
17411652.91931
Surface area
1.7503277389885E+14
Volume
9.577713923574E+20
Height
9477703.3846113