20121539 is an odd 8-digits prime number following 20121538
and preceding 20121540 . In scientific notation, it is written as 2.0121539 × 10^7.
The sum of its digits is 23. It has a total of 1 prime factors and 2 positive divisors.
There are 20121538 positive integers (up to 20121539) that are relatively prime to 20121539.
20121539 has 2 divisors, whose sum is 20121540
The reverse of 20121539 is 93512102
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million one hundred twenty-one thousand five hundred thirty-nine
Scientific notation
2.0121539 × 10^7
Engineering notation
2.0121539 × 10^6
Prime Factorization
20121539
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20121539
Product of the distinct prime numbers
The prime factorization of 20121539 is 20121539.
Since it has a total of 1 prime factors.
3 , 1 , 98 , 34 , 726 , 44 , 2408 , 1896 , 57049 , 60365 , 368457 , 901986 , 3044720 , 3132788 , 11036945 , 17423848 , 339111332 , 892760508 , 2891761076 , 5253135513
n×2
40243078
n×3
60364617
n×4
80486156
n×5
100607695
n÷2
10060769.5
n÷3
6707179.6666667
n÷3
5030384.75
n÷5
4024307.8
n2
404876331728521
n3
8.1467348990524E+21
n4
1.6392484399394E+29
n5
3.298420141493E+36
2 √n
4485.7038466667
3 √n
271.99049761354
4 √n
66.975397323694
5 √n
28.888982043732
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20121540
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10060770
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4485.7039581319
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.999999900604
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20121539 can be divided by 2 positive divisors.
The sum of these divisors (counting 20121539) is 20121540, the average is 10060770.
Base
System
Value
2
Binary
1001100110000011111000011
3
Ternary
1101212021120012
4
Quaternary
1030300133003
5
Quinary
20122342124
6
Senary
1555135135
8
Octal
114603703
10
Decimal
20121539
12
Duodecimal
68a44ab
16
Hexadecimal
13307c3
20
Vigesimal
65f3gj
36
Base36
bz9vn
md5
6cd759b594e21cb013290dddff842370
sha1
900151123221ab7999e3dba34da1319f1b19b0b5
sha256
431d8cf24c5011f3316aff678f53cf831ee46578f3d13ca02c0a4b56e9cfd445
sha512
f302f3d7fc0155f957bc329492326fcac1f307b7b404fe1073162272f36c7562d32c77a8c6a7bdfc414ca8e885038b7b6f719e8638684f12d223d3e3b2e52948
ripemd-160
e255222f85e33e9ebec702007bf07cc75a8917ee
Diameter
40243078
Circumference
126427358.20264
Area
1.2719565093707E+15
Volume
3.4124963346142E+22
Surface area
5.0878260374828E+15
Circumference
126427358.20264
Perimeter
80486156
Area
404876331728521
Diagonal
28456153.349619
Surface area
2429257990371126
Volume
8.1467348990524E+21
Space diagonal
34851527.874479
Perimeter
60364617
Area
1.7531659433398E+14
Altitude
17425763.937239
Surface area
1.7531659433398E+14
Volume
9.6010191527484E+20
Height
9485384.4498731