20145245 is an odd 8-digits composite number following 20145244
and preceding 20145246 . In scientific notation, it is written as 2.0145245 × 10^7.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 16116192 positive integers (up to 20145245) that are relatively prime to 20145245.
20145245 has 4 divisors, whose sum is 24174300
The reverse of 20145245 is 54254102
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million one hundred forty-five thousand two hundred forty-five
Scientific notation
2.0145245 × 10^7
Engineering notation
2.0145245 × 10^6
Prime Factorization
5 × 4029049
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20145245
Product of the distinct prime numbers
The prime factorization of 20145245 is 5 × 4029049.
Since it has a total of 2 prime factors.
7 , 4 , 65 , 21 , 389 , 761 , 277 , 9960 , 8799 , 29642 , 301497 , 30237 , 4659250 , 3279525 , 83172596 , 92194786 , 891915347 , 879371727 , 8509617733 , 6000784447
n×2
40290490
n×3
60435735
n×4
80580980
n×5
100726225
n÷2
10072622.5
n÷3
6715081.6666667
n÷3
5036311.25
n÷5
4029049
n2
405830896110025
n3
8.175562830706E+21
n4
1.6469871623747E+29
n5
3.3178959897892E+36
2 √n
4488.3454635311
3 √n
272.09727003374
4 √n
66.995115221418
5 √n
28.895785894075
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
-20145244
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 20145245 can be divided by 4 positive divisors.
The sum of these divisors (counting 20145245) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110110010001011101
3
Ternary
1101220111002012
4
Quaternary
1030312101131
5
Quinary
20124121440
6
Senary
1555441005
8
Octal
114662135
10
Decimal
20145245
12
Duodecimal
68b6165
16
Hexadecimal
133645d
20
Vigesimal
65i325
36
Base36
bzs65
md5
2372ed5aa5efe9ffba363bd3e3e2b514
sha1
5df9e3e4407c2f7423f70d6b7799d74a9621bcba
sha256
24d20787e046a38d839b6a02c47f21376e998ff1ef0e319d297d4262de9ecacb
sha512
96665ff28308aec96bb2ba177fed9c224f68bfd88ec14a4f33aa83ce055e901af476b781f7709e8d58e522eaa0e42fb39db80f30e1666b9e0d6cb61d296171b2
ripemd-160
b949bb54fdf04066245a8d19048fab4d0192d39c
Diameter
40290490
Circumference
126576307.39353
Area
1.274955361819E+15
Volume
3.4245717503877E+22
Surface area
5.0998214472761E+15
Circumference
126576307.39353
Perimeter
80580980
Area
405830896110025
Diagonal
28489678.696329
Surface area
2434985376660150
Volume
8.175562830706E+21
Space diagonal
34892587.870923
Perimeter
60435735
Area
1.7572993283594E+14
Altitude
17446293.935461
Surface area
1.7572993283594E+14
Volume
9.6349931960148E+20
Height
9496559.5654429