20123945 is an odd 8-digits composite number following 20123944
and preceding 20123946 . In scientific notation, it is written as 2.0123945 × 10^7.
The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors.
There are 15250464 positive integers (up to 20123945) that are relatively prime to 20123945.
20123945 has 8 divisors, whose sum is 21408000
The reverse of 20123945 is 54932102
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty million one hundred twenty-three thousand nine hundred forty-five
Scientific notation
2.0123945 × 10^7
Engineering notation
2.0123945 × 10^6
Prime Factorization
95 × 19 × 11149
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20123945
Product of the distinct prime numbers
The prime factorization of 20123945 is 95 × 19 × 11149.
Since it has a total of 3 prime factors.
1 , 10 , 68 , 22 , 197 , 346 , 6431 , 839 , 5292 , 53576 , 549039 , 905249 , 679395 , 6069398 , 2591821 , 15157224 , 396764293 , 986138476 , 539244484 , 9507246809
n×2
40247890
n×3
60371835
n×4
80495780
n×5
100619725
n÷2
10061972.5
n÷3
6707981.6666667
n÷3
5030986.25
n÷5
4024789
n2
404973162363025
n3
8.1496576458696E+21
n4
1.6400326223431E+29
n5
3.3003926290238E+36
2 √n
4485.9720239877
3 √n
272.00133812058
4 √n
66.977399352227
5 √n
28.889672881213
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
-20123944
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 20123945 can be divided by 8 positive divisors.
The sum of these divisors (counting 20123945) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110001000100101001
3
Ternary
1101212101212022
4
Quaternary
1030301010221
5
Quinary
20122431240
6
Senary
1555154225
8
Octal
114610451
10
Decimal
20123945
12
Duodecimal
68a5975
16
Hexadecimal
1331129
20
Vigesimal
65f9h5
36
Base36
bzbqh
md5
48eb9b3a3692e0b2bf85cc12696d54e5
sha1
f348fc08b89013ab3df9170dc309bea42a527a85
sha256
6f17b263f3cc86c4e8bb8d905ef6d4c4a3e0d1e348cb5cc3405b11de5b73843c
sha512
5370f593530c972d6a958e071c0556daf17a4db1bf51db2eaf9423857b305119caf3dd48c9d689f5504ae811c5956639c9f209cd995906a524ec07225e7eaa09
ripemd-160
070c66390151a3320085d7241fb1492535ae37f0
Diameter
40247890
Circumference
126442475.54649
Area
1.2722607117807E+15
Volume
3.4137206119381E+22
Surface area
5.0890428471228E+15
Circumference
126442475.54649
Perimeter
80495780
Area
404973162363025
Diagonal
28459555.94745
Surface area
2429838974178150
Volume
8.1496576458696E+21
Space diagonal
34855695.188722
Perimeter
60371835
Area
1.7535852322865E+14
Altitude
17427847.594361
Surface area
1.7535852322865E+14
Volume
9.6044636429053E+20
Height
9486518.6491501