20120389 is an odd 8-digits composite number following 20120388
and preceding 20120390 . In scientific notation, it is written as 2.0120389 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 19975500 positive integers (up to 20120389) that are relatively prime to 20120389.
20120389 has 4 divisors, whose sum is 20265280
The reverse of 20120389 is 98302102
Previous prime number is 139
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million one hundred twenty thousand three hundred eighty-nine
Scientific notation
2.0120389 × 10^7
Engineering notation
2.0120389 × 10^6
Prime Factorization
139 × 144751
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20120389
Product of the distinct prime numbers
The prime factorization of 20120389 is 139 × 144751.
Since it has a total of 2 prime factors.
5 , 1 , 70 , 2 , 444 , 371 , 304 , 664 , 91234 , 64276 , 28225 , 631602 , 3787110 , 2891946 , 49879568 , 99597433 , 445618966 , 869383653 , 547309255 , 189838273
n×2
40240778
n×3
60361167
n×4
80481556
n×5
100601945
n÷2
10060194.5
n÷3
6706796.3333333
n÷3
5030097.25
n÷5
4024077.8
n2
404830053511321
n3
8.1453381555386E+21
n4
1.6388737222598E+29
n5
3.2974776813745E+36
2 √n
4485.5756598234
3 √n
271.98531585232
4 √n
66.97444034722
5 √n
28.888651819599
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
-20120388
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 20120389 can be divided by 4 positive divisors.
The sum of these divisors (counting 20120389) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110000001101000101
3
Ternary
1101212012222121
4
Quaternary
1030300031011
5
Quinary
20122323024
6
Senary
1555125541
8
Octal
114601505
10
Decimal
20120389
12
Duodecimal
68a38b1
16
Hexadecimal
1330345
20
Vigesimal
65f0j9
36
Base36
bz8zp
md5
efd53315f205a705d84eeafa1400ce23
sha1
ca39121601bcac757cea54d7ab6d39b90454aea2
sha256
c081d17633cd0f65738b8252186e963b2d2617f291684ccbfa7a455d5881bb7f
sha512
9effc4e91d391e85623c0218f7bd9f53ed97ef90ddac46d6262ca121311595044bb0f5ce5f89f19188d82c8e9a8dd083a9703bd683b230e1fb14c43540246780
ripemd-160
22b4c193977fd87ccbe897319e8a40d3e7c6e779
Diameter
40240778
Circumference
126420132.53954
Area
1.2718111220635E+15
Volume
3.4119112680593E+22
Surface area
5.0872444882541E+15
Circumference
126420132.53954
Perimeter
80481556
Area
404830053511321
Diagonal
28454527.004022
Surface area
2428980321067926
Volume
8.1453381555386E+21
Space diagonal
34849536.01605
Perimeter
60361167
Area
1.7529655527811E+14
Altitude
17424768.008025
Surface area
1.7529655527811E+14
Volume
9.5993730747314E+20
Height
9484842.3346741