20121839 is an odd 8-digits prime number following 20121838
and preceding 20121840 . In scientific notation, it is written as 2.0121839 × 10^7.
The sum of its digits is 26. It has a total of 1 prime factors and 2 positive divisors.
There are 20121838 positive integers (up to 20121839) that are relatively prime to 20121839.
20121839 has 2 divisors, whose sum is 20121840
The reverse of 20121839 is 93812102
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty million one hundred twenty-one thousand eight hundred thirty-nine
Scientific notation
2.0121839 × 10^7
Engineering notation
2.0121839 × 10^6
Prime Factorization
20121839
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20121839
Product of the distinct prime numbers
The prime factorization of 20121839 is 20121839.
Since it has a total of 1 prime factors.
5 , 3 , 28 , 7 , 335 , 386 , 7464 , 3754 , 64811 , 24040 , 460935 , 433469 , 1252201 , 1412462 , 44114197 , 79916335 , 158780416 , 264545476 , 8476320961 , 9906637829
n×2
40243678
n×3
60365517
n×4
80487356
n×5
100609195
n÷2
10060919.5
n÷3
6707279.6666667
n÷3
5030459.75
n÷5
4024367.8
n2
404888404741921
n3
8.1470992931838E+21
n4
1.6393462029446E+29
n5
3.2986660360912E+36
2 √n
4485.7372861103
3 √n
271.99184934486
4 √n
66.975646962984
5 √n
28.889068186675
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20121840
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10060920
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4485.7373975747
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999006055
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20121839 can be divided by 2 positive divisors.
The sum of these divisors (counting 20121839) is 20121840, the average is 10060920.
Base
System
Value
2
Binary
1001100110000100011101111
3
Ternary
1101212021222022
4
Quaternary
1030300203233
5
Quinary
20122344324
6
Senary
1555140355
8
Octal
114604357
10
Decimal
20121839
12
Duodecimal
68a46bb
16
Hexadecimal
13308ef
20
Vigesimal
65f4bj
36
Base36
bza3z
md5
e80fff86d4f52d2ec991d98b61488082
sha1
5fc15e6e9cdcde16703a2132500c469532b7c5a0
sha256
1955a7bd9c21be71eb9eaccefd91a348fd99c40e87e3fdb45b680e9c3528e086
sha512
4d35d9ce909455ae1bba05e54574d12160e67ab8e3bbc1160dd61ff3ac34b13a2afd7648e292d01c2dc9a4e8991161b7561f7a6b5cd6ab3f5c2075bdb2595594
ripemd-160
4e556b3447371fa31b0e2552d844b46e1d388d19
Diameter
40243678
Circumference
126429243.15823
Area
1.2719944378609E+15
Volume
3.412648971671E+22
Surface area
5.0879777514436E+15
Circumference
126429243.15823
Perimeter
80487356
Area
404888404741921
Diagonal
28456577.613688
Surface area
2429330428451526
Volume
8.1470992931838E+21
Space diagonal
34852047.489721
Perimeter
60365517
Area
1.7532182210213E+14
Altitude
17426023.74486
Surface area
1.7532182210213E+14
Volume
9.6014485953506E+20
Height
9485525.8712293