20121239 is an odd 8-digits composite number following 20121238
and preceding 20121240 . In scientific notation, it is written as 2.0121239 × 10^7.
The sum of its digits is 20. It has a total of 2 prime factors and 4 positive divisors.
There are 19820856 positive integers (up to 20121239) that are relatively prime to 20121239.
20121239 has 4 divisors, whose sum is 20421624
The reverse of 20121239 is 93212102
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty million one hundred twenty-one thousand two hundred thirty-nine
Scientific notation
2.0121239 × 10^7
Engineering notation
2.0121239 × 10^6
Prime Factorization
67 × 300317
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20121239
Product of the distinct prime numbers
The prime factorization of 20121239 is 67 × 300317.
Since it has a total of 2 prime factors.
4 , 9 , 12 , 26 , 672 , 317 , 6706 , 2234 , 93894 , 54922 , 626836 , 20014 , 779365 , 9905358 , 89083237 , 56824344 , 33822678 , 174371324 , 1330229748 , 4102149379
n×2
40242478
n×3
60363717
n×4
80484956
n×5
100606195
n÷2
10060619.5
n÷3
6707079.6666667
n÷3
5030309.75
n÷5
4024247.8
n2
404864258895121
n3
8.1463705157866E+21
n4
1.639150681307E+29
n5
3.298174261559E+36
2 √n
4485.6704069737
3 √n
271.98914586878
4 √n
66.975147681612
5 √n
28.888895899762
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
-20121238
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 20121239 can be divided by 4 positive divisors.
The sum of these divisors (counting 20121239) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110000011010010111
3
Ternary
1101212021011002
4
Quaternary
1030300122113
5
Quinary
20122334424
6
Senary
1555133515
8
Octal
114603227
10
Decimal
20121239
12
Duodecimal
68a429b
16
Hexadecimal
1330697
20
Vigesimal
65f31j
36
Base36
bz9nb
md5
0667c8d837612402cbd2f8adad81857e
sha1
7e058c808dd65388dc8013ea5cd9e0940c5a69e9
sha256
4561a1cbc41ef4771a3971ab6c7ae03af953b20c65fe3ac8de3b4ffab4e0ce03
sha512
b93b6e54d3fc09c41498b15bca0ae2e2e876f1a039f4977e8a933a3f1097a90e201860ded30f17135353bc278b37ed815ef0dea2d777be5a58b7a296d4c0dc90
ripemd-160
7c6505c1fecbd669b0d52c91422e9e84550c993a
Diameter
40242478
Circumference
126425473.24705
Area
1.271918581446E+15
Volume
3.4123437021088E+22
Surface area
5.087674325784E+15
Circumference
126425473.24705
Perimeter
80484956
Area
404864258895121
Diagonal
28455729.08555
Surface area
2429185553370726
Volume
8.1463705157866E+21
Space diagonal
34851008.259236
Perimeter
60363717
Area
1.7531136664377E+14
Altitude
17425504.129618
Surface area
1.7531136664377E+14
Volume
9.6005897229514E+20
Height
9485243.0285168